79180180

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 170032464

約数和(自身を除く): 90852284

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 193, 281, 292, 365, 386, 562, 730, 772, 965, 1124, 1405, 1460, 1930, 2810, 3860, 5620, 14089, 20513, 28178, 41026, 54233, 56356, 70445, 82052, 102565, 108466, 140890, 205130, 216932, 271165, 281780, 410260, 542330, 1084660, 3959009, 7918018, 15836036, 19795045, 39590090, 79180180]

約数ペア:

[(1, 79180180), (2, 39590090), (4, 19795045), (5, 15836036), (10, 7918018), (20, 3959009), (73, 1084660), (146, 542330), (193, 410260), (281, 281780), (292, 271165), (365, 216932), (386, 205130), (562, 140890), (730, 108466), (772, 102565), (965, 82052), (1124, 70445), (1405, 56356), (1460, 54233), (1930, 41026), (2810, 28178), (3860, 20513), (5620, 14089)]