7862980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 17385984

約数和(自身を除く): 9523004

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 223, 410, 430, 446, 820, 860, 892, 1115, 1763, 2230, 3526, 4460, 7052, 8815, 9143, 9589, 17630, 18286, 19178, 35260, 36572, 38356, 45715, 47945, 91430, 95890, 182860, 191780, 393149, 786298, 1572596, 1965745, 3931490, 7862980]

約数ペア:

[(1, 7862980), (2, 3931490), (4, 1965745), (5, 1572596), (10, 786298), (20, 393149), (41, 191780), (43, 182860), (82, 95890), (86, 91430), (164, 47945), (172, 45715), (205, 38356), (215, 36572), (223, 35260), (410, 19178), (430, 18286), (446, 17630), (820, 9589), (860, 9143), (892, 8815), (1115, 7052), (1763, 4460), (2230, 3526)]