15661980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{87011}}^1$

素因数の和:87026

約数の個数: 36

約数和(自身を含む): 47508552

約数和(自身を除く): 31846572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 87011, 174022, 261033, 348044, 435055, 522066, 783099, 870110, 1044132, 1305165, 1566198, 1740220, 2610330, 3132396, 3915495, 5220660, 7830990, 15661980]

約数ペア:

[(1, 15661980), (2, 7830990), (3, 5220660), (4, 3915495), (5, 3132396), (6, 2610330), (9, 1740220), (10, 1566198), (12, 1305165), (15, 1044132), (18, 870110), (20, 783099), (30, 522066), (36, 435055), (45, 348044), (60, 261033), (90, 174022), (180, 87011)]