256649895

素因数分解:

$3^2\times 5^1\times {\mathrm{1481}}^1\times {\mathrm{3851}}^1$

素因数の和:5343

約数の個数: 24

約数和(自身を含む): 445275792

約数和(自身を除く): 188625897

約数列:

[1, 3, 5, 9, 15, 45, 1481, 3851, 4443, 7405, 11553, 13329, 19255, 22215, 34659, 57765, 66645, 173295, 5703331, 17109993, 28516655, 51329979, 85549965, 256649895]

約数ペア:

[(1, 256649895), (3, 85549965), (5, 51329979), (9, 28516655), (15, 17109993), (45, 5703331), (1481, 173295), (3851, 66645), (4443, 57765), (7405, 34659), (11553, 22215), (13329, 19255)]