19261780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 41771520

約数和(自身を除く): 22509740

約数列:

[1, 2, 4, 5, 10, 20, 73, 79, 146, 158, 167, 292, 316, 334, 365, 395, 668, 730, 790, 835, 1460, 1580, 1670, 3340, 5767, 11534, 12191, 13193, 23068, 24382, 26386, 28835, 48764, 52772, 57670, 60955, 65965, 115340, 121910, 131930, 243820, 263860, 963089, 1926178, 3852356, 4815445, 9630890, 19261780]

約数ペア:

[(1, 19261780), (2, 9630890), (4, 4815445), (5, 3852356), (10, 1926178), (20, 963089), (73, 263860), (79, 243820), (146, 131930), (158, 121910), (167, 115340), (292, 65965), (316, 60955), (334, 57670), (365, 52772), (395, 48764), (668, 28835), (730, 26386), (790, 24382), (835, 23068), (1460, 13193), (1580, 12191), (1670, 11534), (3340, 5767)]