4640000

素因数分解:

$2^8\times 5^4\times {\mathrm{29}}^1$

素因数の和:65

約数の個数: 90

約数和(自身を含む): 11972730

約数和(自身を除く): 7332730

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 64, 80, 100, 116, 125, 128, 145, 160, 200, 232, 250, 256, 290, 320, 400, 464, 500, 580, 625, 640, 725, 800, 928, 1000, 1160, 1250, 1280, 1450, 1600, 1856, 2000, 2320, 2500, 2900, 3200, 3625, 3712, 4000, 4640, 5000, 5800, 6400, 7250, 7424, 8000, 9280, 10000, 11600, 14500, 16000, 18125, 18560, 20000, 23200, 29000, 32000, 36250, 37120, 40000, 46400, 58000, 72500, 80000, 92800, 116000, 145000, 160000, 185600, 232000, 290000, 464000, 580000, 928000, 1160000, 2320000, 4640000]

約数ペア:

[(1, 4640000), (2, 2320000), (4, 1160000), (5, 928000), (8, 580000), (10, 464000), (16, 290000), (20, 232000), (25, 185600), (29, 160000), (32, 145000), (40, 116000), (50, 92800), (58, 80000), (64, 72500), (80, 58000), (100, 46400), (116, 40000), (125, 37120), (128, 36250), (145, 32000), (160, 29000), (200, 23200), (232, 20000), (250, 18560), (256, 18125), (290, 16000), (320, 14500), (400, 11600), (464, 10000), (500, 9280), (580, 8000), (625, 7424), (640, 7250), (725, 6400), (800, 5800), (928, 5000), (1000, 4640), (1160, 4000), (1250, 3712), (1280, 3625), (1450, 3200), (1600, 2900), (1856, 2500), (2000, 2320)]