28251665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{10601}}^1$

素因数の和:10660

約数の個数: 16

約数和(自身を含む): 37403856

約数和(自身を除く): 9152191

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 10601, 53005, 137813, 434641, 689065, 2173205, 5650333, 28251665]

約数ペア:

[(1, 28251665), (5, 5650333), (13, 2173205), (41, 689065), (65, 434641), (205, 137813), (533, 53005), (2665, 10601)]