405845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 16

約数和(自身を含む): 546048

約数和(自身を除く): 140203

約数列:

[1, 5, 11, 47, 55, 157, 235, 517, 785, 1727, 2585, 7379, 8635, 36895, 81169, 405845]

約数ペア:

[(1, 405845), (5, 81169), (11, 36895), (47, 8635), (55, 7379), (157, 2585), (235, 1727), (517, 785)]