20637750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{3931}}^1$

素因数の和:3958

約数の個数: 64

約数和(自身を含む): 58885632

約数和(自身を除く): 38247882

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 150, 175, 210, 250, 350, 375, 525, 750, 875, 1050, 1750, 2625, 3931, 5250, 7862, 11793, 19655, 23586, 27517, 39310, 55034, 58965, 82551, 98275, 117930, 137585, 165102, 196550, 275170, 294825, 412755, 491375, 589650, 687925, 825510, 982750, 1375850, 1474125, 2063775, 2948250, 3439625, 4127550, 6879250, 10318875, 20637750]

約数ペア:

[(1, 20637750), (2, 10318875), (3, 6879250), (5, 4127550), (6, 3439625), (7, 2948250), (10, 2063775), (14, 1474125), (15, 1375850), (21, 982750), (25, 825510), (30, 687925), (35, 589650), (42, 491375), (50, 412755), (70, 294825), (75, 275170), (105, 196550), (125, 165102), (150, 137585), (175, 117930), (210, 98275), (250, 82551), (350, 58965), (375, 55034), (525, 39310), (750, 27517), (875, 23586), (1050, 19655), (1750, 11793), (2625, 7862), (3931, 5250)]