30203740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{487}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 72801792

約数和(自身を除く): 42598052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 487, 886, 974, 1772, 1948, 2215, 2435, 3101, 3409, 4430, 4870, 6202, 6818, 8860, 9740, 12404, 13636, 15505, 17045, 31010, 34090, 62020, 68180, 215741, 431482, 862964, 1078705, 1510187, 2157410, 3020374, 4314820, 6040748, 7550935, 15101870, 30203740]

約数ペア:

[(1, 30203740), (2, 15101870), (4, 7550935), (5, 6040748), (7, 4314820), (10, 3020374), (14, 2157410), (20, 1510187), (28, 1078705), (35, 862964), (70, 431482), (140, 215741), (443, 68180), (487, 62020), (886, 34090), (974, 31010), (1772, 17045), (1948, 15505), (2215, 13636), (2435, 12404), (3101, 9740), (3409, 8860), (4430, 6818), (4870, 6202)]