51465560

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{12739}}^1$

素因数の和:12851

約数の個数: 32

約数和(自身を含む): 116953200

約数和(自身を除く): 65487640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 12739, 25478, 50956, 63695, 101912, 127390, 254780, 509560, 1286639, 2573278, 5146556, 6433195, 10293112, 12866390, 25732780, 51465560]

約数ペア:

[(1, 51465560), (2, 25732780), (4, 12866390), (5, 10293112), (8, 6433195), (10, 5146556), (20, 2573278), (40, 1286639), (101, 509560), (202, 254780), (404, 127390), (505, 101912), (808, 63695), (1010, 50956), (2020, 25478), (4040, 12739)]