20213331860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2609}}^1\times {\mathrm{7309}}^1$

素因数の和:9980

約数の個数: 48

約数和(自身を含む): 43271398800

約数和(自身を除く): 23058066940

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 2609, 5218, 7309, 10436, 13045, 14618, 26090, 29236, 36545, 52180, 73090, 138277, 146180, 276554, 387377, 553108, 691385, 774754, 1382770, 1549508, 1936885, 2765540, 3873770, 7747540, 19069181, 38138362, 76276724, 95345905, 190691810, 381383620, 1010666593, 2021333186, 4042666372, 5053332965, 10106665930, 20213331860]

約数ペア:

[(1, 20213331860), (2, 10106665930), (4, 5053332965), (5, 4042666372), (10, 2021333186), (20, 1010666593), (53, 381383620), (106, 190691810), (212, 95345905), (265, 76276724), (530, 38138362), (1060, 19069181), (2609, 7747540), (5218, 3873770), (7309, 2765540), (10436, 1936885), (13045, 1549508), (14618, 1382770), (26090, 774754), (29236, 691385), (36545, 553108), (52180, 387377), (73090, 276554), (138277, 146180)]