409355

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 16

約数和(自身を含む): 537600

約数和(自身を除く): 128245

約数列:

[1, 5, 19, 31, 95, 139, 155, 589, 695, 2641, 2945, 4309, 13205, 21545, 81871, 409355]

約数ペア:

[(1, 409355), (5, 81871), (19, 21545), (31, 13205), (95, 4309), (139, 2945), (155, 2641), (589, 695)]