18166940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7507}}^1$

素因数の和:7538

約数の個数: 36

約数和(自身を含む): 41939688

約数和(自身を除く): 23772748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7507, 15014, 30028, 37535, 75070, 82577, 150140, 165154, 330308, 412885, 825770, 908347, 1651540, 1816694, 3633388, 4541735, 9083470, 18166940]

約数ペア:

[(1, 18166940), (2, 9083470), (4, 4541735), (5, 3633388), (10, 1816694), (11, 1651540), (20, 908347), (22, 825770), (44, 412885), (55, 330308), (110, 165154), (121, 150140), (220, 82577), (242, 75070), (484, 37535), (605, 30028), (1210, 15014), (2420, 7507)]