81157405

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{136399}}^1$

素因数の和:136428

約数の個数: 16

約数和(自身を含む): 117849600

約数和(自身を除く): 36692195

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 136399, 681995, 954793, 2318783, 4773965, 11593915, 16231481, 81157405]

約数ペア:

[(1, 81157405), (5, 16231481), (7, 11593915), (17, 4773965), (35, 2318783), (85, 954793), (119, 681995), (595, 136399)]