990975

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:267

約数の個数: 24

約数和(自身を含む): 1670032

約数和(自身を除く): 679057

約数列:

[1, 3, 5, 15, 25, 73, 75, 181, 219, 365, 543, 905, 1095, 1825, 2715, 4525, 5475, 13213, 13575, 39639, 66065, 198195, 330325, 990975]

約数ペア:

[(1, 990975), (3, 330325), (5, 198195), (15, 66065), (25, 39639), (73, 13575), (75, 13213), (181, 5475), (219, 4525), (365, 2715), (543, 1825), (905, 1095)]