19589920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17491}}^1$

素因数の和:17513

約数の個数: 48

約数和(自身を含む): 52895808

約数和(自身を除く): 33305888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17491, 34982, 69964, 87455, 122437, 139928, 174910, 244874, 279856, 349820, 489748, 559712, 612185, 699640, 979496, 1224370, 1399280, 1958992, 2448740, 2798560, 3917984, 4897480, 9794960, 19589920]

約数ペア:

[(1, 19589920), (2, 9794960), (4, 4897480), (5, 3917984), (7, 2798560), (8, 2448740), (10, 1958992), (14, 1399280), (16, 1224370), (20, 979496), (28, 699640), (32, 612185), (35, 559712), (40, 489748), (56, 349820), (70, 279856), (80, 244874), (112, 174910), (140, 139928), (160, 122437), (224, 87455), (280, 69964), (560, 34982), (1120, 17491)]