25615880

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1597}}^1$

素因数の和:2009

約数の個数: 32

約数和(自身を含む): 57815640

約数和(自身を除く): 32199760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1597, 1604, 2005, 3194, 3208, 4010, 6388, 7985, 8020, 12776, 15970, 16040, 31940, 63880, 640397, 1280794, 2561588, 3201985, 5123176, 6403970, 12807940, 25615880]

約数ペア:

[(1, 25615880), (2, 12807940), (4, 6403970), (5, 5123176), (8, 3201985), (10, 2561588), (20, 1280794), (40, 640397), (401, 63880), (802, 31940), (1597, 16040), (1604, 15970), (2005, 12776), (3194, 8020), (3208, 7985), (4010, 6388)]