661550

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:244

約数の個数: 24

約数和(自身を含む): 1252152

約数和(自身を除く): 590602

約数列:

[1, 2, 5, 10, 25, 50, 101, 131, 202, 262, 505, 655, 1010, 1310, 2525, 3275, 5050, 6550, 13231, 26462, 66155, 132310, 330775, 661550]

約数ペア:

[(1, 661550), (2, 330775), (5, 132310), (10, 66155), (25, 26462), (50, 13231), (101, 6550), (131, 5050), (202, 3275), (262, 2525), (505, 1310), (655, 1010)]