19792420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2531}}^1$

素因数の和:2580

約数の個数: 48

約数和(自身を含む): 45940608

約数和(自身を除く): 26148188

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2531, 3910, 5062, 7820, 10124, 12655, 25310, 43027, 50620, 58213, 86054, 116426, 172108, 215135, 232852, 291065, 430270, 582130, 860540, 989621, 1164260, 1979242, 3958484, 4948105, 9896210, 19792420]

約数ペア:

[(1, 19792420), (2, 9896210), (4, 4948105), (5, 3958484), (10, 1979242), (17, 1164260), (20, 989621), (23, 860540), (34, 582130), (46, 430270), (68, 291065), (85, 232852), (92, 215135), (115, 172108), (170, 116426), (230, 86054), (340, 58213), (391, 50620), (460, 43027), (782, 25310), (1564, 12655), (1955, 10124), (2531, 7820), (3910, 5062)]