8631320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 21016800

約数和(自身を除く): 12385480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 277, 328, 380, 410, 554, 760, 779, 820, 1108, 1385, 1558, 1640, 2216, 2770, 3116, 3895, 5263, 5540, 6232, 7790, 10526, 11080, 11357, 15580, 21052, 22714, 26315, 31160, 42104, 45428, 52630, 56785, 90856, 105260, 113570, 210520, 215783, 227140, 431566, 454280, 863132, 1078915, 1726264, 2157830, 4315660, 8631320]

約数ペア:

[(1, 8631320), (2, 4315660), (4, 2157830), (5, 1726264), (8, 1078915), (10, 863132), (19, 454280), (20, 431566), (38, 227140), (40, 215783), (41, 210520), (76, 113570), (82, 105260), (95, 90856), (152, 56785), (164, 52630), (190, 45428), (205, 42104), (277, 31160), (328, 26315), (380, 22714), (410, 21052), (554, 15580), (760, 11357), (779, 11080), (820, 10526), (1108, 7790), (1385, 6232), (1558, 5540), (1640, 5263), (2216, 3895), (2770, 3116)]