27945980

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{3319}}^1$

素因数の和:3749

約数の個数: 24

約数和(自身を含む): 58843680

約数和(自身を除く): 30897700

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 3319, 4210, 6638, 8420, 13276, 16595, 33190, 66380, 1397299, 2794598, 5589196, 6986495, 13972990, 27945980]

約数ペア:

[(1, 27945980), (2, 13972990), (4, 6986495), (5, 5589196), (10, 2794598), (20, 1397299), (421, 66380), (842, 33190), (1684, 16595), (2105, 13276), (3319, 8420), (4210, 6638)]