646875315

素因数分解:

$3^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3253}}^1$

素因数の和:3761

約数の個数: 40

約数和(自身を含む): 1162302768

約数和(自身を除く): 515427453

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 491, 1473, 2455, 3253, 4419, 7365, 9759, 13257, 16265, 22095, 29277, 39771, 48795, 66285, 87831, 146385, 198855, 263493, 439155, 1317465, 1597223, 4791669, 7986115, 14375007, 23958345, 43125021, 71875035, 129375063, 215625105, 646875315]

約数ペア:

[(1, 646875315), (3, 215625105), (5, 129375063), (9, 71875035), (15, 43125021), (27, 23958345), (45, 14375007), (81, 7986115), (135, 4791669), (405, 1597223), (491, 1317465), (1473, 439155), (2455, 263493), (3253, 198855), (4419, 146385), (7365, 87831), (9759, 66285), (13257, 48795), (16265, 39771), (22095, 29277)]