31488820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3491}}^1$

素因数の和:3552

約数の個数: 48

約数和(自身を含む): 73918656

約数和(自身を除く): 42429836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 3491, 4510, 6982, 9020, 13964, 17455, 34910, 38401, 69820, 76802, 143131, 153604, 192005, 286262, 384010, 572524, 715655, 768020, 1431310, 1574441, 2862620, 3148882, 6297764, 7872205, 15744410, 31488820]

約数ペア:

[(1, 31488820), (2, 15744410), (4, 7872205), (5, 6297764), (10, 3148882), (11, 2862620), (20, 1574441), (22, 1431310), (41, 768020), (44, 715655), (55, 572524), (82, 384010), (110, 286262), (164, 192005), (205, 153604), (220, 143131), (410, 76802), (451, 69820), (820, 38401), (902, 34910), (1804, 17455), (2255, 13964), (3491, 9020), (4510, 6982)]