82120400

素因数分解:

$2^4\times 5^2\times {\mathrm{239}}^1\times {\mathrm{859}}^1$

素因数の和:1116

約数の個数: 60

約数和(自身を含む): 198350400

約数和(自身を除く): 116230000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 239, 400, 478, 859, 956, 1195, 1718, 1912, 2390, 3436, 3824, 4295, 4780, 5975, 6872, 8590, 9560, 11950, 13744, 17180, 19120, 21475, 23900, 34360, 42950, 47800, 68720, 85900, 95600, 171800, 205301, 343600, 410602, 821204, 1026505, 1642408, 2053010, 3284816, 4106020, 5132525, 8212040, 10265050, 16424080, 20530100, 41060200, 82120400]

約数ペア:

[(1, 82120400), (2, 41060200), (4, 20530100), (5, 16424080), (8, 10265050), (10, 8212040), (16, 5132525), (20, 4106020), (25, 3284816), (40, 2053010), (50, 1642408), (80, 1026505), (100, 821204), (200, 410602), (239, 343600), (400, 205301), (478, 171800), (859, 95600), (956, 85900), (1195, 68720), (1718, 47800), (1912, 42950), (2390, 34360), (3436, 23900), (3824, 21475), (4295, 19120), (4780, 17180), (5975, 13744), (6872, 11950), (8590, 9560)]