642344684

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{443}}^1\times {\mathrm{4073}}^1$

素因数の和:4609

約数の個数: 24

約数和(自身を含む): 1139579280

約数和(自身を除く): 497234596

約数列:

[1, 2, 4, 89, 178, 356, 443, 886, 1772, 4073, 8146, 16292, 39427, 78854, 157708, 362497, 724994, 1449988, 1804339, 3608678, 7217356, 160586171, 321172342, 642344684]

約数ペア:

[(1, 642344684), (2, 321172342), (4, 160586171), (89, 7217356), (178, 3608678), (356, 1804339), (443, 1449988), (886, 724994), (1772, 362497), (4073, 157708), (8146, 78854), (16292, 39427)]