81870140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{372137}}^1$

素因数の和:372157

約数の個数: 24

約数和(自身を含む): 187557552

約数和(自身を除く): 105687412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 372137, 744274, 1488548, 1860685, 3721370, 4093507, 7442740, 8187014, 16374028, 20467535, 40935070, 81870140]

約数ペア:

[(1, 81870140), (2, 40935070), (4, 20467535), (5, 16374028), (10, 8187014), (11, 7442740), (20, 4093507), (22, 3721370), (44, 1860685), (55, 1488548), (110, 744274), (220, 372137)]