2237720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1301}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 5155920

約数和(自身を除く): 2918200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1301, 1720, 2602, 5204, 6505, 10408, 13010, 26020, 52040, 55943, 111886, 223772, 279715, 447544, 559430, 1118860, 2237720]

約数ペア:

[(1, 2237720), (2, 1118860), (4, 559430), (5, 447544), (8, 279715), (10, 223772), (20, 111886), (40, 55943), (43, 52040), (86, 26020), (172, 13010), (215, 10408), (344, 6505), (430, 5204), (860, 2602), (1301, 1720)]