18486380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7639}}^1$

素因数の和:7670

約数の個数: 36

約数和(自身を含む): 42677040

約数和(自身を除く): 24190660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7639, 15278, 30556, 38195, 76390, 84029, 152780, 168058, 336116, 420145, 840290, 924319, 1680580, 1848638, 3697276, 4621595, 9243190, 18486380]

約数ペア:

[(1, 18486380), (2, 9243190), (4, 4621595), (5, 3697276), (10, 1848638), (11, 1680580), (20, 924319), (22, 840290), (44, 420145), (55, 336116), (110, 168058), (121, 152780), (220, 84029), (242, 76390), (484, 38195), (605, 30556), (1210, 15278), (2420, 7639)]