12900860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2143}}^1$

素因数の和:2202

約数の個数: 48

約数和(自身を含む): 31696896

約数和(自身を除く): 18796036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 2143, 3010, 4286, 6020, 8572, 10715, 15001, 21430, 30002, 42860, 60004, 75005, 92149, 150010, 184298, 300020, 368596, 460745, 645043, 921490, 1290086, 1842980, 2580172, 3225215, 6450430, 12900860]

約数ペア:

[(1, 12900860), (2, 6450430), (4, 3225215), (5, 2580172), (7, 1842980), (10, 1290086), (14, 921490), (20, 645043), (28, 460745), (35, 368596), (43, 300020), (70, 184298), (86, 150010), (140, 92149), (172, 75005), (215, 60004), (301, 42860), (430, 30002), (602, 21430), (860, 15001), (1204, 10715), (1505, 8572), (2143, 6020), (3010, 4286)]