25696040

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1129}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 57969000

約数和(自身を除く): 32272960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1129, 1138, 2258, 2276, 2845, 4516, 4552, 5645, 5690, 9032, 11290, 11380, 22580, 22760, 45160, 642401, 1284802, 2569604, 3212005, 5139208, 6424010, 12848020, 25696040]

約数ペア:

[(1, 25696040), (2, 12848020), (4, 6424010), (5, 5139208), (8, 3212005), (10, 2569604), (20, 1284802), (40, 642401), (569, 45160), (1129, 22760), (1138, 22580), (2258, 11380), (2276, 11290), (2845, 9032), (4516, 5690), (4552, 5645)]