646335

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:335

約数の個数: 24

約数和(自身を含む): 1145664

約数和(自身を除く): 499329

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 271, 477, 795, 813, 1355, 2385, 2439, 4065, 12195, 14363, 43089, 71815, 129267, 215445, 646335]

約数ペア:

[(1, 646335), (3, 215445), (5, 129267), (9, 71815), (15, 43089), (45, 14363), (53, 12195), (159, 4065), (265, 2439), (271, 2385), (477, 1355), (795, 813)]