28268020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11681}}^1$

素因数の和:11712

約数の個数: 36

約数和(自身を含む): 65255652

約数和(自身を除く): 36987632

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11681, 23362, 46724, 58405, 116810, 128491, 233620, 256982, 513964, 642455, 1284910, 1413401, 2569820, 2826802, 5653604, 7067005, 14134010, 28268020]

約数ペア:

[(1, 28268020), (2, 14134010), (4, 7067005), (5, 5653604), (10, 2826802), (11, 2569820), (20, 1413401), (22, 1284910), (44, 642455), (55, 513964), (110, 256982), (121, 233620), (220, 128491), (242, 116810), (484, 58405), (605, 46724), (1210, 23362), (2420, 11681)]