11712220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 26798688

約数和(自身を除く): 15086468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 421, 428, 535, 842, 1070, 1391, 1684, 2105, 2140, 2782, 4210, 5473, 5564, 6955, 8420, 10946, 13910, 21892, 27365, 27820, 45047, 54730, 90094, 109460, 180188, 225235, 450470, 585611, 900940, 1171222, 2342444, 2928055, 5856110, 11712220]

約数ペア:

[(1, 11712220), (2, 5856110), (4, 2928055), (5, 2342444), (10, 1171222), (13, 900940), (20, 585611), (26, 450470), (52, 225235), (65, 180188), (107, 109460), (130, 90094), (214, 54730), (260, 45047), (421, 27820), (428, 27365), (535, 21892), (842, 13910), (1070, 10946), (1391, 8420), (1684, 6955), (2105, 5564), (2140, 5473), (2782, 4210)]