28005215

素因数分解:

$5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{757}}^1$

素因数の和:927

約数の個数: 24

約数和(自身を含む): 39403872

約数和(自身を除く): 11398657

約数列:

[1, 5, 7, 35, 49, 151, 245, 755, 757, 1057, 3785, 5285, 5299, 7399, 26495, 36995, 37093, 114307, 185465, 571535, 800149, 4000745, 5601043, 28005215]

約数ペア:

[(1, 28005215), (5, 5601043), (7, 4000745), (35, 800149), (49, 571535), (151, 185465), (245, 114307), (755, 37093), (757, 36995), (1057, 26495), (3785, 7399), (5285, 5299)]