18746780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72103}}^1$

素因数の和:72125

約数の個数: 24

約数和(自身を含む): 42397152

約数和(自身を除く): 23650372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72103, 144206, 288412, 360515, 721030, 937339, 1442060, 1874678, 3749356, 4686695, 9373390, 18746780]

約数ペア:

[(1, 18746780), (2, 9373390), (4, 4686695), (5, 3749356), (10, 1874678), (13, 1442060), (20, 937339), (26, 721030), (52, 360515), (65, 288412), (130, 144206), (260, 72103)]