25577960

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3923}}^1$

素因数の和:4097

約数の個数: 32

約数和(自身を含む): 57918240

約数和(自身を除く): 32340280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 3923, 6520, 7846, 15692, 19615, 31384, 39230, 78460, 156920, 639449, 1278898, 2557796, 3197245, 5115592, 6394490, 12788980, 25577960]

約数ペア:

[(1, 25577960), (2, 12788980), (4, 6394490), (5, 5115592), (8, 3197245), (10, 2557796), (20, 1278898), (40, 639449), (163, 156920), (326, 78460), (652, 39230), (815, 31384), (1304, 19615), (1630, 15692), (3260, 7846), (3923, 6520)]