20443600

素因数分解:

$2^4\times 5^2\times {\mathrm{51109}}^1$

素因数の和:51127

約数の個数: 30

約数和(自身を含む): 49116710

約数和(自身を除く): 28673110

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51109, 102218, 204436, 255545, 408872, 511090, 817744, 1022180, 1277725, 2044360, 2555450, 4088720, 5110900, 10221800, 20443600]

約数ペア:

[(1, 20443600), (2, 10221800), (4, 5110900), (5, 4088720), (8, 2555450), (10, 2044360), (16, 1277725), (20, 1022180), (25, 817744), (40, 511090), (50, 408872), (80, 255545), (100, 204436), (200, 102218), (400, 51109)]