28656825

素因数分解:

$3^1\times 5^2\times {\mathrm{181}}^1\times {\mathrm{2111}}^1$

素因数の和:2305

約数の個数: 24

約数和(自身を含む): 47663616

約数和(自身を除く): 19006791

約数列:

[1, 3, 5, 15, 25, 75, 181, 543, 905, 2111, 2715, 4525, 6333, 10555, 13575, 31665, 52775, 158325, 382091, 1146273, 1910455, 5731365, 9552275, 28656825]

約数ペア:

[(1, 28656825), (3, 9552275), (5, 5731365), (15, 1910455), (25, 1146273), (75, 382091), (181, 158325), (543, 52775), (905, 31665), (2111, 13575), (2715, 10555), (4525, 6333)]