78778000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:378

約数の個数: 160

約数和(自身を含む): 231199488

約数和(自身を除く): 152421488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 80, 85, 100, 112, 119, 125, 136, 140, 170, 175, 200, 238, 250, 272, 280, 331, 340, 350, 400, 425, 476, 500, 560, 595, 662, 680, 700, 850, 875, 952, 1000, 1190, 1324, 1360, 1400, 1655, 1700, 1750, 1904, 2000, 2125, 2317, 2380, 2648, 2800, 2975, 3310, 3400, 3500, 4250, 4634, 4760, 5296, 5627, 5950, 6620, 6800, 7000, 8275, 8500, 9268, 9520, 11254, 11585, 11900, 13240, 14000, 14875, 16550, 17000, 18536, 22508, 23170, 23800, 26480, 28135, 29750, 33100, 34000, 37072, 39389, 41375, 45016, 46340, 47600, 56270, 57925, 59500, 66200, 78778, 82750, 90032, 92680, 112540, 115850, 119000, 132400, 140675, 157556, 165500, 185360, 196945, 225080, 231700, 238000, 281350, 289625, 315112, 331000, 393890, 450160, 463400, 562700, 579250, 630224, 662000, 703375, 787780, 926800, 984725, 1125400, 1158500, 1406750, 1575560, 1969450, 2250800, 2317000, 2813500, 3151120, 3938900, 4634000, 4923625, 5627000, 7877800, 9847250, 11254000, 15755600, 19694500, 39389000, 78778000]

約数ペア:

[(1, 78778000), (2, 39389000), (4, 19694500), (5, 15755600), (7, 11254000), (8, 9847250), (10, 7877800), (14, 5627000), (16, 4923625), (17, 4634000), (20, 3938900), (25, 3151120), (28, 2813500), (34, 2317000), (35, 2250800), (40, 1969450), (50, 1575560), (56, 1406750), (68, 1158500), (70, 1125400), (80, 984725), (85, 926800), (100, 787780), (112, 703375), (119, 662000), (125, 630224), (136, 579250), (140, 562700), (170, 463400), (175, 450160), (200, 393890), (238, 331000), (250, 315112), (272, 289625), (280, 281350), (331, 238000), (340, 231700), (350, 225080), (400, 196945), (425, 185360), (476, 165500), (500, 157556), (560, 140675), (595, 132400), (662, 119000), (680, 115850), (700, 112540), (850, 92680), (875, 90032), (952, 82750), (1000, 78778), (1190, 66200), (1324, 59500), (1360, 57925), (1400, 56270), (1655, 47600), (1700, 46340), (1750, 45016), (1904, 41375), (2000, 39389), (2125, 37072), (2317, 34000), (2380, 33100), (2648, 29750), (2800, 28135), (2975, 26480), (3310, 23800), (3400, 23170), (3500, 22508), (4250, 18536), (4634, 17000), (4760, 16550), (5296, 14875), (5627, 14000), (5950, 13240), (6620, 11900), (6800, 11585), (7000, 11254), (8275, 9520), (8500, 9268)]