19829560

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4813}}^1$

素因数の和:4927

約数の個数: 32

約数和(自身を含む): 45059040

約数和(自身を除く): 25229480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4813, 9626, 19252, 24065, 38504, 48130, 96260, 192520, 495739, 991478, 1982956, 2478695, 3965912, 4957390, 9914780, 19829560]

約数ペア:

[(1, 19829560), (2, 9914780), (4, 4957390), (5, 3965912), (8, 2478695), (10, 1982956), (20, 991478), (40, 495739), (103, 192520), (206, 96260), (412, 48130), (515, 38504), (824, 24065), (1030, 19252), (2060, 9626), (4120, 4813)]