19821880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38119}}^1$

素因数の和:38143

約数の個数: 32

約数和(自身を含む): 48031200

約数和(自身を除く): 28209320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38119, 76238, 152476, 190595, 304952, 381190, 495547, 762380, 991094, 1524760, 1982188, 2477735, 3964376, 4955470, 9910940, 19821880]

約数ペア:

[(1, 19821880), (2, 9910940), (4, 4955470), (5, 3964376), (8, 2477735), (10, 1982188), (13, 1524760), (20, 991094), (26, 762380), (40, 495547), (52, 381190), (65, 304952), (104, 190595), (130, 152476), (260, 76238), (520, 38119)]