20145552675

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{85571}}^1$

素因数の和:85700

約数の個数: 48

約数和(自身を含む): 34549181568

約数和(自身を除く): 14403628893

約数列:

[1, 3, 5, 15, 25, 43, 73, 75, 129, 215, 219, 365, 645, 1075, 1095, 1825, 3139, 3225, 5475, 9417, 15695, 47085, 78475, 85571, 235425, 256713, 427855, 1283565, 2139275, 3679553, 6246683, 6417825, 11038659, 18397765, 18740049, 31233415, 55193295, 91988825, 93700245, 156167075, 268607369, 275966475, 468501225, 805822107, 1343036845, 4029110535, 6715184225, 20145552675]

約数ペア:

[(1, 20145552675), (3, 6715184225), (5, 4029110535), (15, 1343036845), (25, 805822107), (43, 468501225), (73, 275966475), (75, 268607369), (129, 156167075), (215, 93700245), (219, 91988825), (365, 55193295), (645, 31233415), (1075, 18740049), (1095, 18397765), (1825, 11038659), (3139, 6417825), (3225, 6246683), (5475, 3679553), (9417, 2139275), (15695, 1283565), (47085, 427855), (78475, 256713), (85571, 235425)]