19846040

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4817}}^1$

素因数の和:4931

約数の個数: 32

約数和(自身を含む): 45096480

約数和(自身を除く): 25250440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4817, 9634, 19268, 24085, 38536, 48170, 96340, 192680, 496151, 992302, 1984604, 2480755, 3969208, 4961510, 9923020, 19846040]

約数ペア:

[(1, 19846040), (2, 9923020), (4, 4961510), (5, 3969208), (8, 2480755), (10, 1984604), (20, 992302), (40, 496151), (103, 192680), (206, 96340), (412, 48170), (515, 38536), (824, 24085), (1030, 19268), (2060, 9634), (4120, 4817)]