72664780

素因数分解:

$2^2\times 5^1\times {\mathrm{1823}}^1\times {\mathrm{1993}}^1$

素因数の和:3825

約数の個数: 24

約数和(自身を含む): 152756352

約数和(自身を除く): 80091572

約数列:

[1, 2, 4, 5, 10, 20, 1823, 1993, 3646, 3986, 7292, 7972, 9115, 9965, 18230, 19930, 36460, 39860, 3633239, 7266478, 14532956, 18166195, 36332390, 72664780]

約数ペア:

[(1, 72664780), (2, 36332390), (4, 18166195), (5, 14532956), (10, 7266478), (20, 3633239), (1823, 39860), (1993, 36460), (3646, 19930), (3986, 18230), (7292, 9965), (7972, 9115)]