20720220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2287}}^1$

素因数の和:2450

約数の個数: 48

約数和(自身を含む): 58426368

約数和(自身を除く): 37706148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2287, 3020, 4530, 4574, 6861, 9060, 9148, 11435, 13722, 22870, 27444, 34305, 45740, 68610, 137220, 345337, 690674, 1036011, 1381348, 1726685, 2072022, 3453370, 4144044, 5180055, 6906740, 10360110, 20720220]

約数ペア:

[(1, 20720220), (2, 10360110), (3, 6906740), (4, 5180055), (5, 4144044), (6, 3453370), (10, 2072022), (12, 1726685), (15, 1381348), (20, 1036011), (30, 690674), (60, 345337), (151, 137220), (302, 68610), (453, 45740), (604, 34305), (755, 27444), (906, 22870), (1510, 13722), (1812, 11435), (2265, 9148), (2287, 9060), (3020, 6861), (4530, 4574)]