17940740

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2237}}^1$

素因数の和:2647

約数の個数: 24

約数和(自身を含む): 37786392

約数和(自身を除く): 19845652

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 2237, 4010, 4474, 8020, 8948, 11185, 22370, 44740, 897037, 1794074, 3588148, 4485185, 8970370, 17940740]

約数ペア:

[(1, 17940740), (2, 8970370), (4, 4485185), (5, 3588148), (10, 1794074), (20, 897037), (401, 44740), (802, 22370), (1604, 11185), (2005, 8948), (2237, 8020), (4010, 4474)]