15965225

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 21968460

約数和(自身を除く): 6003235

約数列:

[1, 5, 19, 25, 29, 61, 95, 145, 305, 361, 475, 551, 725, 1159, 1525, 1769, 1805, 2755, 5795, 8845, 9025, 10469, 13775, 22021, 28975, 33611, 44225, 52345, 110105, 168055, 261725, 550525, 638609, 840275, 3193045, 15965225]

約数ペア:

[(1, 15965225), (5, 3193045), (19, 840275), (25, 638609), (29, 550525), (61, 261725), (95, 168055), (145, 110105), (305, 52345), (361, 44225), (475, 33611), (551, 28975), (725, 22021), (1159, 13775), (1525, 10469), (1769, 9025), (1805, 8845), (2755, 5795)]