81584000

素因数分解:

$2^7\times 5^3\times {\mathrm{5099}}^1$

素因数の和:5128

約数の個数: 64

約数和(自身を含む): 202878000

約数和(自身を除く): 121294000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1600, 2000, 3200, 4000, 5099, 8000, 10198, 16000, 20396, 25495, 40792, 50990, 81584, 101980, 127475, 163168, 203960, 254950, 326336, 407920, 509900, 637375, 652672, 815840, 1019800, 1274750, 1631680, 2039600, 2549500, 3263360, 4079200, 5099000, 8158400, 10198000, 16316800, 20396000, 40792000, 81584000]

約数ペア:

[(1, 81584000), (2, 40792000), (4, 20396000), (5, 16316800), (8, 10198000), (10, 8158400), (16, 5099000), (20, 4079200), (25, 3263360), (32, 2549500), (40, 2039600), (50, 1631680), (64, 1274750), (80, 1019800), (100, 815840), (125, 652672), (128, 637375), (160, 509900), (200, 407920), (250, 326336), (320, 254950), (400, 203960), (500, 163168), (640, 127475), (800, 101980), (1000, 81584), (1600, 50990), (2000, 40792), (3200, 25495), (4000, 20396), (5099, 16000), (8000, 10198)]