61720780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{280549}}^1$

素因数の和:280569

約数の個数: 24

約数和(自身を含む): 141397200

約数和(自身を除く): 79676420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 280549, 561098, 1122196, 1402745, 2805490, 3086039, 5610980, 6172078, 12344156, 15430195, 30860390, 61720780]

約数ペア:

[(1, 61720780), (2, 30860390), (4, 15430195), (5, 12344156), (10, 6172078), (11, 5610980), (20, 3086039), (22, 2805490), (44, 1402745), (55, 1122196), (110, 561098), (220, 280549)]