1321390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 2787840

約数和(自身を除く): 1466450

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 439, 602, 878, 1505, 2195, 3010, 3073, 4390, 6146, 15365, 18877, 30730, 37754, 94385, 132139, 188770, 264278, 660695, 1321390]

約数ペア:

[(1, 1321390), (2, 660695), (5, 264278), (7, 188770), (10, 132139), (14, 94385), (35, 37754), (43, 30730), (70, 18877), (86, 15365), (215, 6146), (301, 4390), (430, 3073), (439, 3010), (602, 2195), (878, 1505)]