128572000

素因数分解:

$2^5\times 5^3\times {\mathrm{32143}}^1$

素因数の和:32168

約数の個数: 48

約数和(自身を含む): 315911232

約数和(自身を除く): 187339232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 32143, 64286, 128572, 160715, 257144, 321430, 514288, 642860, 803575, 1028576, 1285720, 1607150, 2571440, 3214300, 4017875, 5142880, 6428600, 8035750, 12857200, 16071500, 25714400, 32143000, 64286000, 128572000]

約数ペア:

[(1, 128572000), (2, 64286000), (4, 32143000), (5, 25714400), (8, 16071500), (10, 12857200), (16, 8035750), (20, 6428600), (25, 5142880), (32, 4017875), (40, 3214300), (50, 2571440), (80, 1607150), (100, 1285720), (125, 1028576), (160, 803575), (200, 642860), (250, 514288), (400, 321430), (500, 257144), (800, 160715), (1000, 128572), (2000, 64286), (4000, 32143)]