918740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 1959552

約数和(自身を除く): 1040812

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 647, 710, 1294, 1420, 2588, 3235, 6470, 12940, 45937, 91874, 183748, 229685, 459370, 918740]

約数ペア:

[(1, 918740), (2, 459370), (4, 229685), (5, 183748), (10, 91874), (20, 45937), (71, 12940), (142, 6470), (284, 3235), (355, 2588), (647, 1420), (710, 1294)]