20431510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{661}}^1$

素因数の和:960

約数の個数: 32

約数和(自身を含む): 40323744

約数和(自身を除く): 19892234

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 281, 562, 661, 1322, 1405, 2810, 3091, 3305, 6182, 6610, 7271, 14542, 15455, 30910, 36355, 72710, 185741, 371482, 928705, 1857410, 2043151, 4086302, 10215755, 20431510]

約数ペア:

[(1, 20431510), (2, 10215755), (5, 4086302), (10, 2043151), (11, 1857410), (22, 928705), (55, 371482), (110, 185741), (281, 72710), (562, 36355), (661, 30910), (1322, 15455), (1405, 14542), (2810, 7271), (3091, 6610), (3305, 6182)]