20014405

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 24605568

約数和(自身を除く): 4591163

約数列:

[1, 5, 61, 211, 305, 311, 1055, 1555, 12871, 18971, 64355, 65621, 94855, 328105, 4002881, 20014405]

約数ペア:

[(1, 20014405), (5, 4002881), (61, 328105), (211, 94855), (305, 65621), (311, 64355), (1055, 18971), (1555, 12871)]