1640400000

素因数分解:

$2^7\times 3^1\times 5^5\times {\mathrm{1367}}^1$

素因数の和:1409

約数の個数: 192

約数和(自身を含む): 5450276160

約数和(自身を除く): 3809876160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 128, 150, 160, 192, 200, 240, 250, 300, 320, 375, 384, 400, 480, 500, 600, 625, 640, 750, 800, 960, 1000, 1200, 1250, 1367, 1500, 1600, 1875, 1920, 2000, 2400, 2500, 2734, 3000, 3125, 3200, 3750, 4000, 4101, 4800, 5000, 5468, 6000, 6250, 6835, 7500, 8000, 8202, 9375, 9600, 10000, 10936, 12000, 12500, 13670, 15000, 16000, 16404, 18750, 20000, 20505, 21872, 24000, 25000, 27340, 30000, 32808, 34175, 37500, 40000, 41010, 43744, 48000, 50000, 54680, 60000, 65616, 68350, 75000, 80000, 82020, 87488, 100000, 102525, 109360, 120000, 131232, 136700, 150000, 164040, 170875, 174976, 200000, 205050, 218720, 240000, 262464, 273400, 300000, 328080, 341750, 400000, 410100, 437440, 512625, 524928, 546800, 600000, 656160, 683500, 820200, 854375, 874880, 1025250, 1093600, 1200000, 1312320, 1367000, 1640400, 1708750, 2050500, 2187200, 2563125, 2624640, 2734000, 3280800, 3417500, 4101000, 4271875, 4374400, 5126250, 5468000, 6561600, 6835000, 8202000, 8543750, 10252500, 10936000, 12815625, 13123200, 13670000, 16404000, 17087500, 20505000, 21872000, 25631250, 27340000, 32808000, 34175000, 41010000, 51262500, 54680000, 65616000, 68350000, 82020000, 102525000, 109360000, 136700000, 164040000, 205050000, 273400000, 328080000, 410100000, 546800000, 820200000, 1640400000]

約数ペア:

[(1, 1640400000), (2, 820200000), (3, 546800000), (4, 410100000), (5, 328080000), (6, 273400000), (8, 205050000), (10, 164040000), (12, 136700000), (15, 109360000), (16, 102525000), (20, 82020000), (24, 68350000), (25, 65616000), (30, 54680000), (32, 51262500), (40, 41010000), (48, 34175000), (50, 32808000), (60, 27340000), (64, 25631250), (75, 21872000), (80, 20505000), (96, 17087500), (100, 16404000), (120, 13670000), (125, 13123200), (128, 12815625), (150, 10936000), (160, 10252500), (192, 8543750), (200, 8202000), (240, 6835000), (250, 6561600), (300, 5468000), (320, 5126250), (375, 4374400), (384, 4271875), (400, 4101000), (480, 3417500), (500, 3280800), (600, 2734000), (625, 2624640), (640, 2563125), (750, 2187200), (800, 2050500), (960, 1708750), (1000, 1640400), (1200, 1367000), (1250, 1312320), (1367, 1200000), (1500, 1093600), (1600, 1025250), (1875, 874880), (1920, 854375), (2000, 820200), (2400, 683500), (2500, 656160), (2734, 600000), (3000, 546800), (3125, 524928), (3200, 512625), (3750, 437440), (4000, 410100), (4101, 400000), (4800, 341750), (5000, 328080), (5468, 300000), (6000, 273400), (6250, 262464), (6835, 240000), (7500, 218720), (8000, 205050), (8202, 200000), (9375, 174976), (9600, 170875), (10000, 164040), (10936, 150000), (12000, 136700), (12500, 131232), (13670, 120000), (15000, 109360), (16000, 102525), (16404, 100000), (18750, 87488), (20000, 82020), (20505, 80000), (21872, 75000), (24000, 68350), (25000, 65616), (27340, 60000), (30000, 54680), (32808, 50000), (34175, 48000), (37500, 43744), (40000, 41010)]