2161180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 5322240

約数和(自身を除く): 3161060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 359, 430, 602, 718, 860, 1204, 1436, 1505, 1795, 2513, 3010, 3590, 5026, 6020, 7180, 10052, 12565, 15437, 25130, 30874, 50260, 61748, 77185, 108059, 154370, 216118, 308740, 432236, 540295, 1080590, 2161180]

約数ペア:

[(1, 2161180), (2, 1080590), (4, 540295), (5, 432236), (7, 308740), (10, 216118), (14, 154370), (20, 108059), (28, 77185), (35, 61748), (43, 50260), (70, 30874), (86, 25130), (140, 15437), (172, 12565), (215, 10052), (301, 7180), (359, 6020), (430, 5026), (602, 3590), (718, 3010), (860, 2513), (1204, 1795), (1436, 1505)]