31231220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{15461}}^1$

素因数の和:15571

約数の個数: 24

約数和(自身を含む): 66239208

約数和(自身を除く): 35007988

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 15461, 30922, 61844, 77305, 154610, 309220, 1561561, 3123122, 6246244, 7807805, 15615610, 31231220]

約数ペア:

[(1, 31231220), (2, 15615610), (4, 7807805), (5, 6246244), (10, 3123122), (20, 1561561), (101, 309220), (202, 154610), (404, 77305), (505, 61844), (1010, 30922), (2020, 15461)]