9812180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 23802240

約数和(自身を除く): 13990060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 643, 763, 1090, 1286, 1526, 2180, 2572, 3052, 3215, 3815, 4501, 6430, 7630, 9002, 12860, 15260, 18004, 22505, 45010, 70087, 90020, 140174, 280348, 350435, 490609, 700870, 981218, 1401740, 1962436, 2453045, 4906090, 9812180]

約数ペア:

[(1, 9812180), (2, 4906090), (4, 2453045), (5, 1962436), (7, 1401740), (10, 981218), (14, 700870), (20, 490609), (28, 350435), (35, 280348), (70, 140174), (109, 90020), (140, 70087), (218, 45010), (436, 22505), (545, 18004), (643, 15260), (763, 12860), (1090, 9002), (1286, 7630), (1526, 6430), (2180, 4501), (2572, 3815), (3052, 3215)]