1617230980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1\times {\mathrm{2129}}^1$

素因数の和:4156

約数の個数: 48

約数和(自身を含む): 3578400000

約数和(自身を除く): 1961169020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1999, 2129, 3998, 4258, 7996, 8516, 9995, 10645, 19990, 21290, 37981, 39980, 40451, 42580, 75962, 80902, 151924, 161804, 189905, 202255, 379810, 404510, 759620, 809020, 4255871, 8511742, 17023484, 21279355, 42558710, 80861549, 85117420, 161723098, 323446196, 404307745, 808615490, 1617230980]

約数ペア:

[(1, 1617230980), (2, 808615490), (4, 404307745), (5, 323446196), (10, 161723098), (19, 85117420), (20, 80861549), (38, 42558710), (76, 21279355), (95, 17023484), (190, 8511742), (380, 4255871), (1999, 809020), (2129, 759620), (3998, 404510), (4258, 379810), (7996, 202255), (8516, 189905), (9995, 161804), (10645, 151924), (19990, 80902), (21290, 75962), (37981, 42580), (39980, 40451)]