990518975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{29723}}^1$

素因数の和:29807

約数の個数: 24

約数和(自身を含む): 1297393152

約数和(自身を除く): 306874177

約数列:

[1, 5, 25, 31, 43, 155, 215, 775, 1075, 1333, 6665, 29723, 33325, 148615, 743075, 921413, 1278089, 4607065, 6390445, 23035325, 31952225, 39620759, 198103795, 990518975]

約数ペア:

[(1, 990518975), (5, 198103795), (25, 39620759), (31, 31952225), (43, 23035325), (155, 6390445), (215, 4607065), (775, 1278089), (1075, 921413), (1333, 743075), (6665, 148615), (29723, 33325)]