165748040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{26393}}^1$

素因数の和:26561

約数の個数: 32

約数和(自身を含む): 375322680

約数和(自身を除く): 209574640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 26393, 52786, 105572, 131965, 211144, 263930, 527860, 1055720, 4143701, 8287402, 16574804, 20718505, 33149608, 41437010, 82874020, 165748040]

約数ペア:

[(1, 165748040), (2, 82874020), (4, 41437010), (5, 33149608), (8, 20718505), (10, 16574804), (20, 8287402), (40, 4143701), (157, 1055720), (314, 527860), (628, 263930), (785, 211144), (1256, 131965), (1570, 105572), (3140, 52786), (6280, 26393)]