127392640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6421}}^1$

素因数の和:6471

約数の個数: 64

約数和(自身を含む): 314421120

約数和(自身を除く): 187028480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6421, 9920, 12842, 19840, 25684, 32105, 51368, 64210, 102736, 128420, 199051, 205472, 256840, 398102, 410944, 513680, 796204, 821888, 995255, 1027360, 1592408, 1990510, 2054720, 3184816, 3981020, 4109440, 6369632, 7962040, 12739264, 15924080, 25478528, 31848160, 63696320, 127392640]

約数ペア:

[(1, 127392640), (2, 63696320), (4, 31848160), (5, 25478528), (8, 15924080), (10, 12739264), (16, 7962040), (20, 6369632), (31, 4109440), (32, 3981020), (40, 3184816), (62, 2054720), (64, 1990510), (80, 1592408), (124, 1027360), (128, 995255), (155, 821888), (160, 796204), (248, 513680), (310, 410944), (320, 398102), (496, 256840), (620, 205472), (640, 199051), (992, 128420), (1240, 102736), (1984, 64210), (2480, 51368), (3968, 32105), (4960, 25684), (6421, 19840), (9920, 12842)]