72420685

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 95961600

約数和(自身を除く): 23540915

約数列:

[1, 5, 19, 29, 95, 97, 145, 271, 485, 551, 1355, 1843, 2755, 2813, 5149, 7859, 9215, 14065, 25745, 26287, 39295, 53447, 131435, 149321, 267235, 499453, 746605, 762323, 2497265, 3811615, 14484137, 72420685]

約数ペア:

[(1, 72420685), (5, 14484137), (19, 3811615), (29, 2497265), (95, 762323), (97, 746605), (145, 499453), (271, 267235), (485, 149321), (551, 131435), (1355, 53447), (1843, 39295), (2755, 26287), (2813, 25745), (5149, 14065), (7859, 9215)]