31191010

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:498

約数の個数: 32

約数和(自身を含む): 57480192

約数和(自身を除く): 26289182

約数列:

[1, 2, 5, 10, 71, 142, 197, 223, 355, 394, 446, 710, 985, 1115, 1970, 2230, 13987, 15833, 27974, 31666, 43931, 69935, 79165, 87862, 139870, 158330, 219655, 439310, 3119101, 6238202, 15595505, 31191010]

約数ペア:

[(1, 31191010), (2, 15595505), (5, 6238202), (10, 3119101), (71, 439310), (142, 219655), (197, 158330), (223, 139870), (355, 87862), (394, 79165), (446, 69935), (710, 43931), (985, 31666), (1115, 27974), (1970, 15833), (2230, 13987)]