15840490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{317}}^1$

素因数の和:606

約数の個数: 32

約数和(自身を含む): 30222720

約数和(自身を除く): 14382230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 263, 317, 526, 634, 1315, 1585, 2630, 3170, 4997, 6023, 9994, 12046, 24985, 30115, 49970, 60230, 83371, 166742, 416855, 833710, 1584049, 3168098, 7920245, 15840490]

約数ペア:

[(1, 15840490), (2, 7920245), (5, 3168098), (10, 1584049), (19, 833710), (38, 416855), (95, 166742), (190, 83371), (263, 60230), (317, 49970), (526, 30115), (634, 24985), (1315, 12046), (1585, 9994), (2630, 6023), (3170, 4997)]