18164960

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10321}}^1$

素因数の和:10347

約数の個数: 48

約数和(自身を含む): 46820592

約数和(自身を除く): 28655632

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 10321, 20642, 41284, 51605, 82568, 103210, 113531, 165136, 206420, 227062, 330272, 412840, 454124, 567655, 825680, 908248, 1135310, 1651360, 1816496, 2270620, 3632992, 4541240, 9082480, 18164960]

約数ペア:

[(1, 18164960), (2, 9082480), (4, 4541240), (5, 3632992), (8, 2270620), (10, 1816496), (11, 1651360), (16, 1135310), (20, 908248), (22, 825680), (32, 567655), (40, 454124), (44, 412840), (55, 330272), (80, 227062), (88, 206420), (110, 165136), (160, 113531), (176, 103210), (220, 82568), (352, 51605), (440, 41284), (880, 20642), (1760, 10321)]