19945405

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{823}}^1$

素因数の和:996

約数の個数: 16

約数和(自身を含む): 24799104

約数和(自身を除く): 4853699

約数列:

[1, 5, 37, 131, 185, 655, 823, 4115, 4847, 24235, 30451, 107813, 152255, 539065, 3989081, 19945405]

約数ペア:

[(1, 19945405), (5, 3989081), (37, 539065), (131, 152255), (185, 107813), (655, 30451), (823, 24235), (4115, 4847)]