19513400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2269}}^1$

素因数の和:2328

約数の個数: 48

約数和(自身を含む): 46444200

約数和(自身を除く): 26930800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 2269, 4300, 4538, 8600, 9076, 11345, 18152, 22690, 45380, 56725, 90760, 97567, 113450, 195134, 226900, 390268, 453800, 487835, 780536, 975670, 1951340, 2439175, 3902680, 4878350, 9756700, 19513400]

約数ペア:

[(1, 19513400), (2, 9756700), (4, 4878350), (5, 3902680), (8, 2439175), (10, 1951340), (20, 975670), (25, 780536), (40, 487835), (43, 453800), (50, 390268), (86, 226900), (100, 195134), (172, 113450), (200, 97567), (215, 90760), (344, 56725), (430, 45380), (860, 22690), (1075, 18152), (1720, 11345), (2150, 9076), (2269, 8600), (4300, 4538)]