178118930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 359424000

約数和(自身を除く): 181305070

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 103, 110, 158, 199, 206, 395, 398, 515, 790, 869, 995, 1030, 1133, 1738, 1990, 2189, 2266, 4345, 4378, 5665, 8137, 8690, 10945, 11330, 15721, 16274, 20497, 21890, 31442, 40685, 40994, 78605, 81370, 89507, 102485, 157210, 172931, 179014, 204970, 225467, 345862, 447535, 450934, 864655, 895070, 1127335, 1619263, 1729310, 2254670, 3238526, 8096315, 16192630, 17811893, 35623786, 89059465, 178118930]

約数ペア:

[(1, 178118930), (2, 89059465), (5, 35623786), (10, 17811893), (11, 16192630), (22, 8096315), (55, 3238526), (79, 2254670), (103, 1729310), (110, 1619263), (158, 1127335), (199, 895070), (206, 864655), (395, 450934), (398, 447535), (515, 345862), (790, 225467), (869, 204970), (995, 179014), (1030, 172931), (1133, 157210), (1738, 102485), (1990, 89507), (2189, 81370), (2266, 78605), (4345, 40994), (4378, 40685), (5665, 31442), (8137, 21890), (8690, 20497), (10945, 16274), (11330, 15721)]