8390140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3467}}^1$

素因数の和:3498

約数の個数: 36

約数和(自身を含む): 19372248

約数和(自身を除く): 10982108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 3467, 6934, 13868, 17335, 34670, 38137, 69340, 76274, 152548, 190685, 381370, 419507, 762740, 839014, 1678028, 2097535, 4195070, 8390140]

約数ペア:

[(1, 8390140), (2, 4195070), (4, 2097535), (5, 1678028), (10, 839014), (11, 762740), (20, 419507), (22, 381370), (44, 190685), (55, 152548), (110, 76274), (121, 69340), (220, 38137), (242, 34670), (484, 17335), (605, 13868), (1210, 6934), (2420, 3467)]