81420400

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{7019}}^1$

素因数の和:7066

約数の個数: 60

約数和(自身を含む): 202386600

約数和(自身を除く): 120966200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 2320, 2900, 5800, 7019, 11600, 14038, 28076, 35095, 56152, 70190, 112304, 140380, 175475, 203551, 280760, 350950, 407102, 561520, 701900, 814204, 1017755, 1403800, 1628408, 2035510, 2807600, 3256816, 4071020, 5088775, 8142040, 10177550, 16284080, 20355100, 40710200, 81420400]

約数ペア:

[(1, 81420400), (2, 40710200), (4, 20355100), (5, 16284080), (8, 10177550), (10, 8142040), (16, 5088775), (20, 4071020), (25, 3256816), (29, 2807600), (40, 2035510), (50, 1628408), (58, 1403800), (80, 1017755), (100, 814204), (116, 701900), (145, 561520), (200, 407102), (232, 350950), (290, 280760), (400, 203551), (464, 175475), (580, 140380), (725, 112304), (1160, 70190), (1450, 56152), (2320, 35095), (2900, 28076), (5800, 14038), (7019, 11600)]