4064000

素因数分解:

$2^8\times 5^3\times {\mathrm{127}}^1$

素因数の和:158

約数の個数: 72

約数和(自身を含む): 10203648

約数和(自身を除く): 6139648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 127, 128, 160, 200, 250, 254, 256, 320, 400, 500, 508, 635, 640, 800, 1000, 1016, 1270, 1280, 1600, 2000, 2032, 2540, 3175, 3200, 4000, 4064, 5080, 6350, 6400, 8000, 8128, 10160, 12700, 15875, 16000, 16256, 20320, 25400, 31750, 32000, 32512, 40640, 50800, 63500, 81280, 101600, 127000, 162560, 203200, 254000, 406400, 508000, 812800, 1016000, 2032000, 4064000]

約数ペア:

[(1, 4064000), (2, 2032000), (4, 1016000), (5, 812800), (8, 508000), (10, 406400), (16, 254000), (20, 203200), (25, 162560), (32, 127000), (40, 101600), (50, 81280), (64, 63500), (80, 50800), (100, 40640), (125, 32512), (127, 32000), (128, 31750), (160, 25400), (200, 20320), (250, 16256), (254, 16000), (256, 15875), (320, 12700), (400, 10160), (500, 8128), (508, 8000), (635, 6400), (640, 6350), (800, 5080), (1000, 4064), (1016, 4000), (1270, 3200), (1280, 3175), (1600, 2540), (2000, 2032)]