389481985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{147811}}^1$

素因数の和:147864

約数の個数: 16

約数和(自身を含む): 510838272

約数和(自身を除く): 121356287

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 147811, 739055, 2512787, 4582141, 12563935, 22910705, 77896397, 389481985]

約数ペア:

[(1, 389481985), (5, 77896397), (17, 22910705), (31, 12563935), (85, 4582141), (155, 2512787), (527, 739055), (2635, 147811)]