31680980

素因数分解:

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

素因数の和:608

約数の個数: 48

約数和(自身を含む): 70519680

約数和(自身を除く): 38838700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 263, 317, 380, 526, 634, 1052, 1268, 1315, 1585, 2630, 3170, 4997, 5260, 6023, 6340, 9994, 12046, 19988, 24092, 24985, 30115, 49970, 60230, 83371, 99940, 120460, 166742, 333484, 416855, 833710, 1584049, 1667420, 3168098, 6336196, 7920245, 15840490, 31680980]

約数ペア:

[(1, 31680980), (2, 15840490), (4, 7920245), (5, 6336196), (10, 3168098), (19, 1667420), (20, 1584049), (38, 833710), (76, 416855), (95, 333484), (190, 166742), (263, 120460), (317, 99940), (380, 83371), (526, 60230), (634, 49970), (1052, 30115), (1268, 24985), (1315, 24092), (1585, 19988), (2630, 12046), (3170, 9994), (4997, 6340), (5260, 6023)]