20996760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4729}}^1$

素因数の和:4780

約数の個数: 64

約数和(自身を含む): 64706400

約数和(自身を除く): 43709640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4729, 9458, 14187, 18916, 23645, 28374, 37832, 47290, 56748, 70935, 94580, 113496, 141870, 174973, 189160, 283740, 349946, 524919, 567480, 699892, 874865, 1049838, 1399784, 1749730, 2099676, 2624595, 3499460, 4199352, 5249190, 6998920, 10498380, 20996760]

約数ペア:

[(1, 20996760), (2, 10498380), (3, 6998920), (4, 5249190), (5, 4199352), (6, 3499460), (8, 2624595), (10, 2099676), (12, 1749730), (15, 1399784), (20, 1049838), (24, 874865), (30, 699892), (37, 567480), (40, 524919), (60, 349946), (74, 283740), (111, 189160), (120, 174973), (148, 141870), (185, 113496), (222, 94580), (296, 70935), (370, 56748), (444, 47290), (555, 37832), (740, 28374), (888, 23645), (1110, 18916), (1480, 14187), (2220, 9458), (4440, 4729)]