2158405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 2790720

約数和(自身を除く): 632315

約数列:

[1, 5, 17, 67, 85, 335, 379, 1139, 1895, 5695, 6443, 25393, 32215, 126965, 431681, 2158405]

約数ペア:

[(1, 2158405), (5, 431681), (17, 126965), (67, 32215), (85, 25393), (335, 6443), (379, 5695), (1139, 1895)]