86954780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4441}}^1$

素因数の和:4550

約数の個数: 48

約数和(自身を含む): 201489120

約数和(自身を除く): 114534340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4441, 4895, 8882, 9790, 17764, 19580, 22205, 44410, 48851, 88820, 97702, 195404, 244255, 395249, 488510, 790498, 977020, 1580996, 1976245, 3952490, 4347739, 7904980, 8695478, 17390956, 21738695, 43477390, 86954780]

約数ペア:

[(1, 86954780), (2, 43477390), (4, 21738695), (5, 17390956), (10, 8695478), (11, 7904980), (20, 4347739), (22, 3952490), (44, 1976245), (55, 1580996), (89, 977020), (110, 790498), (178, 488510), (220, 395249), (356, 244255), (445, 195404), (890, 97702), (979, 88820), (1780, 48851), (1958, 44410), (3916, 22205), (4441, 19580), (4895, 17764), (8882, 9790)]