20403717160

素因数分解:

$2^3\times 5^1\times {\mathrm{4649}}^1\times {\mathrm{109721}}^1$

素因数の和:114381

約数の個数: 32

約数和(自身を含む): 45918657000

約数和(自身を除く): 25514939840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4649, 9298, 18596, 23245, 37192, 46490, 92980, 109721, 185960, 219442, 438884, 548605, 877768, 1097210, 2194420, 4388840, 510092929, 1020185858, 2040371716, 2550464645, 4080743432, 5100929290, 10201858580, 20403717160]

約数ペア:

[(1, 20403717160), (2, 10201858580), (4, 5100929290), (5, 4080743432), (8, 2550464645), (10, 2040371716), (20, 1020185858), (40, 510092929), (4649, 4388840), (9298, 2194420), (18596, 1097210), (23245, 877768), (37192, 548605), (46490, 438884), (92980, 219442), (109721, 185960)]