20833780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8609}}^1$

素因数の和:8640

約数の個数: 36

約数和(自身を含む): 48095460

約数和(自身を除く): 27261680

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8609, 17218, 34436, 43045, 86090, 94699, 172180, 189398, 378796, 473495, 946990, 1041689, 1893980, 2083378, 4166756, 5208445, 10416890, 20833780]

約数ペア:

[(1, 20833780), (2, 10416890), (4, 5208445), (5, 4166756), (10, 2083378), (11, 1893980), (20, 1041689), (22, 946990), (44, 473495), (55, 378796), (110, 189398), (121, 172180), (220, 94699), (242, 86090), (484, 43045), (605, 34436), (1210, 17218), (2420, 8609)]