81121156

素因数分解:

$2^2\times {\mathrm{199}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:883

約数の個数: 24

約数和(自身を含む): 143628800

約数和(自身を除く): 62507644

約数列:

[1, 2, 4, 199, 223, 398, 446, 457, 796, 892, 914, 1828, 44377, 88754, 90943, 101911, 177508, 181886, 203822, 363772, 407644, 20280289, 40560578, 81121156]

約数ペア:

[(1, 81121156), (2, 40560578), (4, 20280289), (199, 407644), (223, 363772), (398, 203822), (446, 181886), (457, 177508), (796, 101911), (892, 90943), (914, 88754), (1828, 44377)]