20201993780

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{811}}^1\times {\mathrm{4057}}^1$

素因数の和:5184

約数の個数: 48

約数和(自身を含む): 42625361856

約数和(自身を除く): 22423368076

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 811, 1228, 1535, 1622, 3070, 3244, 4055, 4057, 6140, 8110, 8114, 16220, 16228, 20285, 40570, 81140, 248977, 497954, 995908, 1244885, 1245499, 2489770, 2490998, 3290227, 4979540, 4981996, 6227495, 6580454, 12454990, 13160908, 16451135, 24909980, 32902270, 65804540, 1010099689, 2020199378, 4040398756, 5050498445, 10100996890, 20201993780]

約数ペア:

[(1, 20201993780), (2, 10100996890), (4, 5050498445), (5, 4040398756), (10, 2020199378), (20, 1010099689), (307, 65804540), (614, 32902270), (811, 24909980), (1228, 16451135), (1535, 13160908), (1622, 12454990), (3070, 6580454), (3244, 6227495), (4055, 4981996), (4057, 4979540), (6140, 3290227), (8110, 2490998), (8114, 2489770), (16220, 1245499), (16228, 1244885), (20285, 995908), (40570, 497954), (81140, 248977)]