80440000

素因数分解:

$2^6\times 5^4\times {\mathrm{2011}}^1$

素因数の和:2043

約数の個数: 70

約数和(自身を含む): 199564244

約数和(自身を除く): 119124244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 2000, 2011, 2500, 4000, 4022, 5000, 8000, 8044, 10000, 10055, 16088, 20000, 20110, 32176, 40000, 40220, 50275, 64352, 80440, 100550, 128704, 160880, 201100, 251375, 321760, 402200, 502750, 643520, 804400, 1005500, 1256875, 1608800, 2011000, 2513750, 3217600, 4022000, 5027500, 8044000, 10055000, 16088000, 20110000, 40220000, 80440000]

約数ペア:

[(1, 80440000), (2, 40220000), (4, 20110000), (5, 16088000), (8, 10055000), (10, 8044000), (16, 5027500), (20, 4022000), (25, 3217600), (32, 2513750), (40, 2011000), (50, 1608800), (64, 1256875), (80, 1005500), (100, 804400), (125, 643520), (160, 502750), (200, 402200), (250, 321760), (320, 251375), (400, 201100), (500, 160880), (625, 128704), (800, 100550), (1000, 80440), (1250, 64352), (1600, 50275), (2000, 40220), (2011, 40000), (2500, 32176), (4000, 20110), (4022, 20000), (5000, 16088), (8000, 10055), (8044, 10000)]