28325000

素因数分解:

$2^3\times 5^5\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 73120320

約数和(自身を除く): 44795320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 103, 110, 125, 200, 206, 220, 250, 275, 412, 440, 500, 515, 550, 625, 824, 1000, 1030, 1100, 1133, 1250, 1375, 2060, 2200, 2266, 2500, 2575, 2750, 3125, 4120, 4532, 5000, 5150, 5500, 5665, 6250, 6875, 9064, 10300, 11000, 11330, 12500, 12875, 13750, 20600, 22660, 25000, 25750, 27500, 28325, 34375, 45320, 51500, 55000, 56650, 64375, 68750, 103000, 113300, 128750, 137500, 141625, 226600, 257500, 275000, 283250, 321875, 515000, 566500, 643750, 708125, 1133000, 1287500, 1416250, 2575000, 2832500, 3540625, 5665000, 7081250, 14162500, 28325000]

約数ペア:

[(1, 28325000), (2, 14162500), (4, 7081250), (5, 5665000), (8, 3540625), (10, 2832500), (11, 2575000), (20, 1416250), (22, 1287500), (25, 1133000), (40, 708125), (44, 643750), (50, 566500), (55, 515000), (88, 321875), (100, 283250), (103, 275000), (110, 257500), (125, 226600), (200, 141625), (206, 137500), (220, 128750), (250, 113300), (275, 103000), (412, 68750), (440, 64375), (500, 56650), (515, 55000), (550, 51500), (625, 45320), (824, 34375), (1000, 28325), (1030, 27500), (1100, 25750), (1133, 25000), (1250, 22660), (1375, 20600), (2060, 13750), (2200, 12875), (2266, 12500), (2500, 11330), (2575, 11000), (2750, 10300), (3125, 9064), (4120, 6875), (4532, 6250), (5000, 5665), (5150, 5500)]