19128040

素因数分解:

$2^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1303}}^1$

素因数の和:1681

約数の個数: 32

約数和(自身を含む): 43188480

約数和(自身を除く): 24060440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 367, 734, 1303, 1468, 1835, 2606, 2936, 3670, 5212, 6515, 7340, 10424, 13030, 14680, 26060, 52120, 478201, 956402, 1912804, 2391005, 3825608, 4782010, 9564020, 19128040]

約数ペア:

[(1, 19128040), (2, 9564020), (4, 4782010), (5, 3825608), (8, 2391005), (10, 1912804), (20, 956402), (40, 478201), (367, 52120), (734, 26060), (1303, 14680), (1468, 13030), (1835, 10424), (2606, 7340), (2936, 6515), (3670, 5212)]