20722440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172687}}^1$

素因数の和:172701

約数の個数: 32

約数和(自身を含む): 62167680

約数和(自身を除く): 41445240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172687, 345374, 518061, 690748, 863435, 1036122, 1381496, 1726870, 2072244, 2590305, 3453740, 4144488, 5180610, 6907480, 10361220, 20722440]

約数ペア:

[(1, 20722440), (2, 10361220), (3, 6907480), (4, 5180610), (5, 4144488), (6, 3453740), (8, 2590305), (10, 2072244), (12, 1726870), (15, 1381496), (20, 1036122), (24, 863435), (30, 690748), (40, 518061), (60, 345374), (120, 172687)]