82777640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{449}}^1$

素因数の和:890

約数の個数: 64

約数和(自身を含む): 204120000

約数和(自身を除く): 121342360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 419, 440, 449, 838, 898, 1676, 1796, 2095, 2245, 3352, 3592, 4190, 4490, 4609, 4939, 8380, 8980, 9218, 9878, 16760, 17960, 18436, 19756, 23045, 24695, 36872, 39512, 46090, 49390, 92180, 98780, 184360, 188131, 197560, 376262, 752524, 940655, 1505048, 1881310, 2069441, 3762620, 4138882, 7525240, 8277764, 10347205, 16555528, 20694410, 41388820, 82777640]

約数ペア:

[(1, 82777640), (2, 41388820), (4, 20694410), (5, 16555528), (8, 10347205), (10, 8277764), (11, 7525240), (20, 4138882), (22, 3762620), (40, 2069441), (44, 1881310), (55, 1505048), (88, 940655), (110, 752524), (220, 376262), (419, 197560), (440, 188131), (449, 184360), (838, 98780), (898, 92180), (1676, 49390), (1796, 46090), (2095, 39512), (2245, 36872), (3352, 24695), (3592, 23045), (4190, 19756), (4490, 18436), (4609, 17960), (4939, 16760), (8380, 9878), (8980, 9218)]