1220890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1009}}^1$

素因数の和:1038

約数の個数: 24

約数和(自身を含む): 2417940

約数和(自身を除く): 1197050

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1009, 1210, 2018, 5045, 10090, 11099, 22198, 55495, 110990, 122089, 244178, 610445, 1220890]

約数ペア:

[(1, 1220890), (2, 610445), (5, 244178), (10, 122089), (11, 110990), (22, 55495), (55, 22198), (110, 11099), (121, 10090), (242, 5045), (605, 2018), (1009, 1210)]