156998440

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{38861}}^1$

素因数の和:38973

約数の個数: 32

約数和(自身を含む): 356753160

約数和(自身を除く): 199754720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 38861, 77722, 155444, 194305, 310888, 388610, 777220, 1554440, 3924961, 7849922, 15699844, 19624805, 31399688, 39249610, 78499220, 156998440]

約数ペア:

[(1, 156998440), (2, 78499220), (4, 39249610), (5, 31399688), (8, 19624805), (10, 15699844), (20, 7849922), (40, 3924961), (101, 1554440), (202, 777220), (404, 388610), (505, 310888), (808, 194305), (1010, 155444), (2020, 77722), (4040, 38861)]