25240840

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1109}}^1$

素因数の和:1689

約数の個数: 32

約数和(自身を含む): 56943000

約数和(自身を除く): 31702160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1109, 1138, 2218, 2276, 2845, 4436, 4552, 5545, 5690, 8872, 11090, 11380, 22180, 22760, 44360, 631021, 1262042, 2524084, 3155105, 5048168, 6310210, 12620420, 25240840]

約数ペア:

[(1, 25240840), (2, 12620420), (4, 6310210), (5, 5048168), (8, 3155105), (10, 2524084), (20, 1262042), (40, 631021), (569, 44360), (1109, 22760), (1138, 22180), (2218, 11380), (2276, 11090), (2845, 8872), (4436, 5690), (4552, 5545)]