40288000

素因数分解:

$2^8\times 5^3\times {\mathrm{1259}}^1$

素因数の和:1290

約数の個数: 72

約数和(自身を含む): 100442160

約数和(自身を除く): 60154160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1259, 1280, 1600, 2000, 2518, 3200, 4000, 5036, 6295, 6400, 8000, 10072, 12590, 16000, 20144, 25180, 31475, 32000, 40288, 50360, 62950, 80576, 100720, 125900, 157375, 161152, 201440, 251800, 314750, 322304, 402880, 503600, 629500, 805760, 1007200, 1259000, 1611520, 2014400, 2518000, 4028800, 5036000, 8057600, 10072000, 20144000, 40288000]

約数ペア:

[(1, 40288000), (2, 20144000), (4, 10072000), (5, 8057600), (8, 5036000), (10, 4028800), (16, 2518000), (20, 2014400), (25, 1611520), (32, 1259000), (40, 1007200), (50, 805760), (64, 629500), (80, 503600), (100, 402880), (125, 322304), (128, 314750), (160, 251800), (200, 201440), (250, 161152), (256, 157375), (320, 125900), (400, 100720), (500, 80576), (640, 62950), (800, 50360), (1000, 40288), (1259, 32000), (1280, 31475), (1600, 25180), (2000, 20144), (2518, 16000), (3200, 12590), (4000, 10072), (5036, 8000), (6295, 6400)]