1258629620

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{64811}}^1$

素因数の和:65791

約数の個数: 24

約数和(自身を含む): 2645885088

約数和(自身を除く): 1387255468

約数列:

[1, 2, 4, 5, 10, 20, 971, 1942, 3884, 4855, 9710, 19420, 64811, 129622, 259244, 324055, 648110, 1296220, 62931481, 125862962, 251725924, 314657405, 629314810, 1258629620]

約数ペア:

[(1, 1258629620), (2, 629314810), (4, 314657405), (5, 251725924), (10, 125862962), (20, 62931481), (971, 1296220), (1942, 648110), (3884, 324055), (4855, 259244), (9710, 129622), (19420, 64811)]