100800640

素因数分解:

$2^7\times 5^1\times {\mathrm{239}}^1\times {\mathrm{659}}^1$

素因数の和:917

約数の個数: 64

約数和(自身を含む): 242352000

約数和(自身を除く): 141551360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 320, 478, 640, 659, 956, 1195, 1318, 1912, 2390, 2636, 3295, 3824, 4780, 5272, 6590, 7648, 9560, 10544, 13180, 15296, 19120, 21088, 26360, 30592, 38240, 42176, 52720, 76480, 84352, 105440, 152960, 157501, 210880, 315002, 421760, 630004, 787505, 1260008, 1575010, 2520016, 3150020, 5040032, 6300040, 10080064, 12600080, 20160128, 25200160, 50400320, 100800640]

約数ペア:

[(1, 100800640), (2, 50400320), (4, 25200160), (5, 20160128), (8, 12600080), (10, 10080064), (16, 6300040), (20, 5040032), (32, 3150020), (40, 2520016), (64, 1575010), (80, 1260008), (128, 787505), (160, 630004), (239, 421760), (320, 315002), (478, 210880), (640, 157501), (659, 152960), (956, 105440), (1195, 84352), (1318, 76480), (1912, 52720), (2390, 42176), (2636, 38240), (3295, 30592), (3824, 26360), (4780, 21088), (5272, 19120), (6590, 15296), (7648, 13180), (9560, 10544)]