40510000

素因数分解:

$2^4\times 5^4\times {\mathrm{4051}}^1$

素因数の和:4079

約数の個数: 50

約数和(自身を含む): 98102972

約数和(自身を除く): 57592972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 4051, 5000, 8102, 10000, 16204, 20255, 32408, 40510, 64816, 81020, 101275, 162040, 202550, 324080, 405100, 506375, 810200, 1012750, 1620400, 2025500, 2531875, 4051000, 5063750, 8102000, 10127500, 20255000, 40510000]

約数ペア:

[(1, 40510000), (2, 20255000), (4, 10127500), (5, 8102000), (8, 5063750), (10, 4051000), (16, 2531875), (20, 2025500), (25, 1620400), (40, 1012750), (50, 810200), (80, 506375), (100, 405100), (125, 324080), (200, 202550), (250, 162040), (400, 101275), (500, 81020), (625, 64816), (1000, 40510), (1250, 32408), (2000, 20255), (2500, 16204), (4051, 10000), (5000, 8102)]