127940528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{420857}}^1$

素因数の和:420884

約数の個数: 20

約数和(自身を含む): 260931960

約数和(自身を除く): 132991432

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 420857, 841714, 1683428, 3366856, 6733712, 7996283, 15992566, 31985132, 63970264, 127940528]

約数ペア:

[(1, 127940528), (2, 63970264), (4, 31985132), (8, 15992566), (16, 7996283), (19, 6733712), (38, 3366856), (76, 1683428), (152, 841714), (304, 420857)]