2028988125

素因数分解:

$3^2\times 5^4\times {\mathrm{23}}^1\times {\mathrm{15683}}^1$

素因数の和:15732

約数の個数: 60

約数和(自身を含む): 3821751648

約数和(自身を除く): 1792763523

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 125, 207, 225, 345, 375, 575, 625, 1035, 1125, 1725, 1875, 2875, 5175, 5625, 8625, 14375, 15683, 25875, 43125, 47049, 78415, 129375, 141147, 235245, 360709, 392075, 705735, 1082127, 1176225, 1803545, 1960375, 3246381, 3528675, 5410635, 5881125, 9017725, 9801875, 16231905, 17643375, 27053175, 29405625, 45088625, 81159525, 88216875, 135265875, 225443125, 405797625, 676329375, 2028988125]

約数ペア:

[(1, 2028988125), (3, 676329375), (5, 405797625), (9, 225443125), (15, 135265875), (23, 88216875), (25, 81159525), (45, 45088625), (69, 29405625), (75, 27053175), (115, 17643375), (125, 16231905), (207, 9801875), (225, 9017725), (345, 5881125), (375, 5410635), (575, 3528675), (625, 3246381), (1035, 1960375), (1125, 1803545), (1725, 1176225), (1875, 1082127), (2875, 705735), (5175, 392075), (5625, 360709), (8625, 235245), (14375, 141147), (15683, 129375), (25875, 78415), (43125, 47049)]