687839445

素因数分解:

$3^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1153}}^1$

素因数の和:1664

約数の個数: 48

約数和(自身を含む): 1240005312

約数和(自身を除く): 552165867

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 491, 1153, 1215, 1473, 2455, 3459, 4419, 5765, 7365, 10377, 13257, 17295, 22095, 31131, 39771, 51885, 66285, 93393, 119313, 155655, 198855, 280179, 466965, 566123, 596565, 1400895, 1698369, 2830615, 5095107, 8491845, 15285321, 25475535, 45855963, 76426605, 137567889, 229279815, 687839445]

約数ペア:

[(1, 687839445), (3, 229279815), (5, 137567889), (9, 76426605), (15, 45855963), (27, 25475535), (45, 15285321), (81, 8491845), (135, 5095107), (243, 2830615), (405, 1698369), (491, 1400895), (1153, 596565), (1215, 566123), (1473, 466965), (2455, 280179), (3459, 198855), (4419, 155655), (5765, 119313), (7365, 93393), (10377, 66285), (13257, 51885), (17295, 39771), (22095, 31131)]