20218804725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{373903}}^1$

素因数の和:374026

約数の個数: 48

約数和(自身を含む): 38574927872

約数和(自身を除く): 18356123147

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 103, 105, 175, 309, 515, 525, 721, 1545, 2163, 2575, 3605, 7725, 10815, 18025, 54075, 373903, 1121709, 1869515, 2617321, 5608545, 7851963, 9347575, 13086605, 28042725, 38512009, 39259815, 65433025, 115536027, 192560045, 196299075, 269584063, 577680135, 808752189, 962800225, 1347920315, 2888400675, 4043760945, 6739601575, 20218804725]

約数ペア:

[(1, 20218804725), (3, 6739601575), (5, 4043760945), (7, 2888400675), (15, 1347920315), (21, 962800225), (25, 808752189), (35, 577680135), (75, 269584063), (103, 196299075), (105, 192560045), (175, 115536027), (309, 65433025), (515, 39259815), (525, 38512009), (721, 28042725), (1545, 13086605), (2163, 9347575), (2575, 7851963), (3605, 5608545), (7725, 2617321), (10815, 1869515), (18025, 1121709), (54075, 373903)]