814794620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{2293}}^1$

素因数の和:2574

約数の個数: 48

約数和(自身を含む): 1738117920

約数和(自身を除く): 923323300

約数列:

[1, 2, 4, 5, 10, 20, 109, 163, 218, 326, 436, 545, 652, 815, 1090, 1630, 2180, 2293, 3260, 4586, 9172, 11465, 17767, 22930, 35534, 45860, 71068, 88835, 177670, 249937, 355340, 373759, 499874, 747518, 999748, 1249685, 1495036, 1868795, 2499370, 3737590, 4998740, 7475180, 40739731, 81479462, 162958924, 203698655, 407397310, 814794620]

約数ペア:

[(1, 814794620), (2, 407397310), (4, 203698655), (5, 162958924), (10, 81479462), (20, 40739731), (109, 7475180), (163, 4998740), (218, 3737590), (326, 2499370), (436, 1868795), (545, 1495036), (652, 1249685), (815, 999748), (1090, 747518), (1630, 499874), (2180, 373759), (2293, 355340), (3260, 249937), (4586, 177670), (9172, 88835), (11465, 71068), (17767, 45860), (22930, 35534)]