416000

素因数分解:

$2^8\times 5^3\times {\mathrm{13}}^1$

素因数の和:44

約数の個数: 72

約数和(自身を含む): 1116024

約数和(自身を除く): 700024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 256, 260, 320, 325, 400, 416, 500, 520, 640, 650, 800, 832, 1000, 1040, 1280, 1300, 1600, 1625, 1664, 2000, 2080, 2600, 3200, 3250, 3328, 4000, 4160, 5200, 6400, 6500, 8000, 8320, 10400, 13000, 16000, 16640, 20800, 26000, 32000, 41600, 52000, 83200, 104000, 208000, 416000]

約数ペア:

[(1, 416000), (2, 208000), (4, 104000), (5, 83200), (8, 52000), (10, 41600), (13, 32000), (16, 26000), (20, 20800), (25, 16640), (26, 16000), (32, 13000), (40, 10400), (50, 8320), (52, 8000), (64, 6500), (65, 6400), (80, 5200), (100, 4160), (104, 4000), (125, 3328), (128, 3250), (130, 3200), (160, 2600), (200, 2080), (208, 2000), (250, 1664), (256, 1625), (260, 1600), (320, 1300), (325, 1280), (400, 1040), (416, 1000), (500, 832), (520, 800), (640, 650)]