20192207620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{390263}}^1$

素因数の和:390484

約数の個数: 48

約数和(自身を含む): 45895046400

約数和(自身を除く): 25702838780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 796, 995, 1990, 2587, 3980, 5174, 10348, 12935, 25870, 51740, 390263, 780526, 1561052, 1951315, 3902630, 5073419, 7805260, 10146838, 20293676, 25367095, 50734190, 77662337, 101468380, 155324674, 310649348, 388311685, 776623370, 1009610381, 1553246740, 2019220762, 4038441524, 5048051905, 10096103810, 20192207620]

約数ペア:

[(1, 20192207620), (2, 10096103810), (4, 5048051905), (5, 4038441524), (10, 2019220762), (13, 1553246740), (20, 1009610381), (26, 776623370), (52, 388311685), (65, 310649348), (130, 155324674), (199, 101468380), (260, 77662337), (398, 50734190), (796, 25367095), (995, 20293676), (1990, 10146838), (2587, 7805260), (3980, 5073419), (5174, 3902630), (10348, 1951315), (12935, 1561052), (25870, 780526), (51740, 390263)]