25953580

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{6521}}^1$

素因数の和:6729

約数の個数: 24

約数和(自身を含む): 54784800

約数和(自身を除く): 28831220

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 6521, 13042, 26084, 32605, 65210, 130420, 1297679, 2595358, 5190716, 6488395, 12976790, 25953580]

約数ペア:

[(1, 25953580), (2, 12976790), (4, 6488395), (5, 5190716), (10, 2595358), (20, 1297679), (199, 130420), (398, 65210), (796, 32605), (995, 26084), (1990, 13042), (3980, 6521)]