164002960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{821}}^1$

素因数の和:1072

約数の個数: 80

約数和(自身を含む): 418312512

約数和(自身を除く): 254309552

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 227, 440, 454, 821, 880, 908, 1135, 1642, 1816, 2270, 2497, 3284, 3632, 4105, 4540, 4994, 6568, 8210, 9031, 9080, 9988, 12485, 13136, 16420, 18062, 18160, 19976, 24970, 32840, 36124, 39952, 45155, 49940, 65680, 72248, 90310, 99880, 144496, 180620, 186367, 199760, 361240, 372734, 722480, 745468, 931835, 1490936, 1863670, 2050037, 2981872, 3727340, 4100074, 7454680, 8200148, 10250185, 14909360, 16400296, 20500370, 32800592, 41000740, 82001480, 164002960]

約数ペア:

[(1, 164002960), (2, 82001480), (4, 41000740), (5, 32800592), (8, 20500370), (10, 16400296), (11, 14909360), (16, 10250185), (20, 8200148), (22, 7454680), (40, 4100074), (44, 3727340), (55, 2981872), (80, 2050037), (88, 1863670), (110, 1490936), (176, 931835), (220, 745468), (227, 722480), (440, 372734), (454, 361240), (821, 199760), (880, 186367), (908, 180620), (1135, 144496), (1642, 99880), (1816, 90310), (2270, 72248), (2497, 65680), (3284, 49940), (3632, 45155), (4105, 39952), (4540, 36124), (4994, 32840), (6568, 24970), (8210, 19976), (9031, 18160), (9080, 18062), (9988, 16420), (12485, 13136)]