285272020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{117881}}^1$

素因数の和:117912

約数の個数: 36

約数和(自身を含む): 658488852

約数和(自身を除く): 373216832

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 117881, 235762, 471524, 589405, 1178810, 1296691, 2357620, 2593382, 5186764, 6483455, 12966910, 14263601, 25933820, 28527202, 57054404, 71318005, 142636010, 285272020]

約数ペア:

[(1, 285272020), (2, 142636010), (4, 71318005), (5, 57054404), (10, 28527202), (11, 25933820), (20, 14263601), (22, 12966910), (44, 6483455), (55, 5186764), (110, 2593382), (121, 2357620), (220, 1296691), (242, 1178810), (484, 589405), (605, 471524), (1210, 235762), (2420, 117881)]