389977705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2539}}^1$

素因数の和:2713

約数の個数: 32

約数和(自身を含む): 537667200

約数和(自身を除く): 147689495

約数列:

[1, 5, 13, 17, 65, 85, 139, 221, 695, 1105, 1807, 2363, 2539, 9035, 11815, 12695, 30719, 33007, 43163, 153595, 165035, 215815, 352921, 561119, 1764605, 2805595, 4587973, 5999657, 22939865, 29998285, 77995541, 389977705]

約数ペア:

[(1, 389977705), (5, 77995541), (13, 29998285), (17, 22939865), (65, 5999657), (85, 4587973), (139, 2805595), (221, 1764605), (695, 561119), (1105, 352921), (1807, 215815), (2363, 165035), (2539, 153595), (9035, 43163), (11815, 33007), (12695, 30719)]