8518580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 20756736

約数和(自身を除く): 12238156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 857, 994, 1420, 1714, 1988, 2485, 3428, 4285, 4970, 5999, 8570, 9940, 11998, 17140, 23996, 29995, 59990, 60847, 119980, 121694, 243388, 304235, 425929, 608470, 851858, 1216940, 1703716, 2129645, 4259290, 8518580]

約数ペア:

[(1, 8518580), (2, 4259290), (4, 2129645), (5, 1703716), (7, 1216940), (10, 851858), (14, 608470), (20, 425929), (28, 304235), (35, 243388), (70, 121694), (71, 119980), (140, 60847), (142, 59990), (284, 29995), (355, 23996), (497, 17140), (710, 11998), (857, 9940), (994, 8570), (1420, 5999), (1714, 4970), (1988, 4285), (2485, 3428)]