9907820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{719}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 22861440

約数和(自身を除く): 12953620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 719, 1060, 1378, 1438, 2756, 2876, 3445, 3595, 6890, 7190, 9347, 13780, 14380, 18694, 37388, 38107, 46735, 76214, 93470, 152428, 186940, 190535, 381070, 495391, 762140, 990782, 1981564, 2476955, 4953910, 9907820]

約数ペア:

[(1, 9907820), (2, 4953910), (4, 2476955), (5, 1981564), (10, 990782), (13, 762140), (20, 495391), (26, 381070), (52, 190535), (53, 186940), (65, 152428), (106, 93470), (130, 76214), (212, 46735), (260, 38107), (265, 37388), (530, 18694), (689, 14380), (719, 13780), (1060, 9347), (1378, 7190), (1438, 6890), (2756, 3595), (2876, 3445)]