77156920

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{5527}}^1$

素因数の和:5887

約数の個数: 32

約数和(自身を含む): 174132000

約数和(自身を除く): 96975080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 5527, 6980, 11054, 13960, 22108, 27635, 44216, 55270, 110540, 221080, 1928923, 3857846, 7715692, 9644615, 15431384, 19289230, 38578460, 77156920]

約数ペア:

[(1, 77156920), (2, 38578460), (4, 19289230), (5, 15431384), (8, 9644615), (10, 7715692), (20, 3857846), (40, 1928923), (349, 221080), (698, 110540), (1396, 55270), (1745, 44216), (2792, 27635), (3490, 22108), (5527, 13960), (6980, 11054)]