28621780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130099}}^1$

素因数の和:130119

約数の個数: 24

約数和(自身を含む): 65570400

約数和(自身を除く): 36948620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130099, 260198, 520396, 650495, 1300990, 1431089, 2601980, 2862178, 5724356, 7155445, 14310890, 28621780]

約数ペア:

[(1, 28621780), (2, 14310890), (4, 7155445), (5, 5724356), (10, 2862178), (11, 2601980), (20, 1431089), (22, 1300990), (44, 650495), (55, 520396), (110, 260198), (220, 130099)]