1640250000

素因数分解:

$2^4\times 3^8\times 5^6$

素因数の和:62

約数の個数: 315

約数和(自身を含む): 5958341701

約数和(自身を除く): 4318091701

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 81, 90, 100, 108, 120, 125, 135, 144, 150, 162, 180, 200, 216, 225, 240, 243, 250, 270, 300, 324, 360, 375, 400, 405, 432, 450, 486, 500, 540, 600, 625, 648, 675, 720, 729, 750, 810, 900, 972, 1000, 1080, 1125, 1200, 1215, 1250, 1296, 1350, 1458, 1500, 1620, 1800, 1875, 1944, 2000, 2025, 2160, 2187, 2250, 2430, 2500, 2700, 2916, 3000, 3125, 3240, 3375, 3600, 3645, 3750, 3888, 4050, 4374, 4500, 4860, 5000, 5400, 5625, 5832, 6000, 6075, 6250, 6480, 6561, 6750, 7290, 7500, 8100, 8748, 9000, 9375, 9720, 10000, 10125, 10800, 10935, 11250, 11664, 12150, 12500, 13122, 13500, 14580, 15000, 15625, 16200, 16875, 17496, 18000, 18225, 18750, 19440, 20250, 21870, 22500, 24300, 25000, 26244, 27000, 28125, 29160, 30000, 30375, 31250, 32400, 32805, 33750, 34992, 36450, 37500, 40500, 43740, 45000, 46875, 48600, 50000, 50625, 52488, 54000, 54675, 56250, 58320, 60750, 62500, 65610, 67500, 72900, 75000, 81000, 84375, 87480, 90000, 91125, 93750, 97200, 101250, 104976, 109350, 112500, 121500, 125000, 131220, 135000, 140625, 145800, 150000, 151875, 162000, 164025, 168750, 174960, 182250, 187500, 202500, 218700, 225000, 243000, 250000, 253125, 262440, 270000, 273375, 281250, 291600, 303750, 328050, 337500, 364500, 375000, 405000, 421875, 437400, 450000, 455625, 486000, 506250, 524880, 546750, 562500, 607500, 656100, 675000, 729000, 750000, 759375, 810000, 820125, 843750, 874800, 911250, 1012500, 1093500, 1125000, 1215000, 1265625, 1312200, 1350000, 1366875, 1458000, 1518750, 1640250, 1687500, 1822500, 2025000, 2187000, 2250000, 2278125, 2430000, 2531250, 2624400, 2733750, 3037500, 3280500, 3375000, 3645000, 3796875, 4050000, 4100625, 4374000, 4556250, 5062500, 5467500, 6075000, 6561000, 6750000, 6834375, 7290000, 7593750, 8201250, 9112500, 10125000, 10935000, 11390625, 12150000, 13122000, 13668750, 15187500, 16402500, 18225000, 20250000, 20503125, 21870000, 22781250, 27337500, 30375000, 32805000, 34171875, 36450000, 41006250, 45562500, 54675000, 60750000, 65610000, 68343750, 82012500, 91125000, 102515625, 109350000, 136687500, 164025000, 182250000, 205031250, 273375000, 328050000, 410062500, 546750000, 820125000, 1640250000]

約数ペア:

[(1, 1640250000), (2, 820125000), (3, 546750000), (4, 410062500), (5, 328050000), (6, 273375000), (8, 205031250), (9, 182250000), (10, 164025000), (12, 136687500), (15, 109350000), (16, 102515625), (18, 91125000), (20, 82012500), (24, 68343750), (25, 65610000), (27, 60750000), (30, 54675000), (36, 45562500), (40, 41006250), (45, 36450000), (48, 34171875), (50, 32805000), (54, 30375000), (60, 27337500), (72, 22781250), (75, 21870000), (80, 20503125), (81, 20250000), (90, 18225000), (100, 16402500), (108, 15187500), (120, 13668750), (125, 13122000), (135, 12150000), (144, 11390625), (150, 10935000), (162, 10125000), (180, 9112500), (200, 8201250), (216, 7593750), (225, 7290000), (240, 6834375), (243, 6750000), (250, 6561000), (270, 6075000), (300, 5467500), (324, 5062500), (360, 4556250), (375, 4374000), (400, 4100625), (405, 4050000), (432, 3796875), (450, 3645000), (486, 3375000), (500, 3280500), (540, 3037500), (600, 2733750), (625, 2624400), (648, 2531250), (675, 2430000), (720, 2278125), (729, 2250000), (750, 2187000), (810, 2025000), (900, 1822500), (972, 1687500), (1000, 1640250), (1080, 1518750), (1125, 1458000), (1200, 1366875), (1215, 1350000), (1250, 1312200), (1296, 1265625), (1350, 1215000), (1458, 1125000), (1500, 1093500), (1620, 1012500), (1800, 911250), (1875, 874800), (1944, 843750), (2000, 820125), (2025, 810000), (2160, 759375), (2187, 750000), (2250, 729000), (2430, 675000), (2500, 656100), (2700, 607500), (2916, 562500), (3000, 546750), (3125, 524880), (3240, 506250), (3375, 486000), (3600, 455625), (3645, 450000), (3750, 437400), (3888, 421875), (4050, 405000), (4374, 375000), (4500, 364500), (4860, 337500), (5000, 328050), (5400, 303750), (5625, 291600), (5832, 281250), (6000, 273375), (6075, 270000), (6250, 262440), (6480, 253125), (6561, 250000), (6750, 243000), (7290, 225000), (7500, 218700), (8100, 202500), (8748, 187500), (9000, 182250), (9375, 174960), (9720, 168750), (10000, 164025), (10125, 162000), (10800, 151875), (10935, 150000), (11250, 145800), (11664, 140625), (12150, 135000), (12500, 131220), (13122, 125000), (13500, 121500), (14580, 112500), (15000, 109350), (15625, 104976), (16200, 101250), (16875, 97200), (17496, 93750), (18000, 91125), (18225, 90000), (18750, 87480), (19440, 84375), (20250, 81000), (21870, 75000), (22500, 72900), (24300, 67500), (25000, 65610), (26244, 62500), (27000, 60750), (28125, 58320), (29160, 56250), (30000, 54675), (30375, 54000), (31250, 52488), (32400, 50625), (32805, 50000), (33750, 48600), (34992, 46875), (36450, 45000), (37500, 43740)]