91921480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{328291}}^1$

素因数の和:328309

約数の個数: 32

約数和(自身を含む): 236370240

約数和(自身を除く): 144448760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 328291, 656582, 1313164, 1641455, 2298037, 2626328, 3282910, 4596074, 6565820, 9192148, 11490185, 13131640, 18384296, 22980370, 45960740, 91921480]

約数ペア:

[(1, 91921480), (2, 45960740), (4, 22980370), (5, 18384296), (7, 13131640), (8, 11490185), (10, 9192148), (14, 6565820), (20, 4596074), (28, 3282910), (35, 2626328), (40, 2298037), (56, 1641455), (70, 1313164), (140, 656582), (280, 328291)]