19743620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75937}}^1$

素因数の和:75959

約数の個数: 24

約数和(自身を含む): 44651544

約数和(自身を除く): 24907924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75937, 151874, 303748, 379685, 759370, 987181, 1518740, 1974362, 3948724, 4935905, 9871810, 19743620]

約数ペア:

[(1, 19743620), (2, 9871810), (4, 4935905), (5, 3948724), (10, 1974362), (13, 1518740), (20, 987181), (26, 759370), (52, 379685), (65, 303748), (130, 151874), (260, 75937)]