18205660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7523}}^1$

素因数の和:7554

約数の個数: 36

約数和(自身を含む): 42029064

約数和(自身を除く): 23823404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7523, 15046, 30092, 37615, 75230, 82753, 150460, 165506, 331012, 413765, 827530, 910283, 1655060, 1820566, 3641132, 4551415, 9102830, 18205660]

約数ペア:

[(1, 18205660), (2, 9102830), (4, 4551415), (5, 3641132), (10, 1820566), (11, 1655060), (20, 910283), (22, 827530), (44, 413765), (55, 331012), (110, 165506), (121, 150460), (220, 82753), (242, 75230), (484, 37615), (605, 30092), (1210, 15046), (2420, 7523)]