19909920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{41479}}^1$

素因数の和:41497

約数の個数: 48

約数和(自身を含む): 62717760

約数和(自身を除く): 42807840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 41479, 82958, 124437, 165916, 207395, 248874, 331832, 414790, 497748, 622185, 663664, 829580, 995496, 1244370, 1327328, 1659160, 1990992, 2488740, 3318320, 3981984, 4977480, 6636640, 9954960, 19909920]

約数ペア:

[(1, 19909920), (2, 9954960), (3, 6636640), (4, 4977480), (5, 3981984), (6, 3318320), (8, 2488740), (10, 1990992), (12, 1659160), (15, 1327328), (16, 1244370), (20, 995496), (24, 829580), (30, 663664), (32, 622185), (40, 497748), (48, 414790), (60, 331832), (80, 248874), (96, 207395), (120, 165916), (160, 124437), (240, 82958), (480, 41479)]