15571985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{751}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 22740480

約数和(自身を除く): 7168495

約数列:

[1, 5, 11, 13, 29, 55, 65, 143, 145, 319, 377, 715, 751, 1595, 1885, 3755, 4147, 8261, 9763, 20735, 21779, 41305, 48815, 107393, 108895, 239569, 283127, 536965, 1197845, 1415635, 3114397, 15571985]

約数ペア:

[(1, 15571985), (5, 3114397), (11, 1415635), (13, 1197845), (29, 536965), (55, 283127), (65, 239569), (143, 108895), (145, 107393), (319, 48815), (377, 41305), (715, 21779), (751, 20735), (1595, 9763), (1885, 8261), (3755, 4147)]