256207815

素因数分解:

$3^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{8719}}^1$

素因数の和:9383

約数の個数: 24

約数和(自身を含む): 444824640

約数和(自身を除く): 188616825

約数列:

[1, 3, 5, 9, 15, 45, 653, 1959, 3265, 5877, 8719, 9795, 26157, 29385, 43595, 78471, 130785, 392355, 5693507, 17080521, 28467535, 51241563, 85402605, 256207815]

約数ペア:

[(1, 256207815), (3, 85402605), (5, 51241563), (9, 28467535), (15, 17080521), (45, 5693507), (653, 392355), (1959, 130785), (3265, 78471), (5877, 43595), (8719, 29385), (9795, 26157)]