28720910

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{70051}}^1$

素因数の和:70099

約数の個数: 16

約数和(自身を含む): 52959312

約数和(自身を除く): 24238402

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 70051, 140102, 350255, 700510, 2872091, 5744182, 14360455, 28720910]

約数ペア:

[(1, 28720910), (2, 14360455), (5, 5744182), (10, 2872091), (41, 700510), (82, 350255), (205, 140102), (410, 70051)]