81857200

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1811}}^1$

素因数の和:1942

約数の個数: 60

約数和(自身を含む): 198511848

約数和(自身を除く): 116654648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 200, 226, 400, 452, 565, 904, 1130, 1808, 1811, 2260, 2825, 3622, 4520, 5650, 7244, 9040, 9055, 11300, 14488, 18110, 22600, 28976, 36220, 45200, 45275, 72440, 90550, 144880, 181100, 204643, 362200, 409286, 724400, 818572, 1023215, 1637144, 2046430, 3274288, 4092860, 5116075, 8185720, 10232150, 16371440, 20464300, 40928600, 81857200]

約数ペア:

[(1, 81857200), (2, 40928600), (4, 20464300), (5, 16371440), (8, 10232150), (10, 8185720), (16, 5116075), (20, 4092860), (25, 3274288), (40, 2046430), (50, 1637144), (80, 1023215), (100, 818572), (113, 724400), (200, 409286), (226, 362200), (400, 204643), (452, 181100), (565, 144880), (904, 90550), (1130, 72440), (1808, 45275), (1811, 45200), (2260, 36220), (2825, 28976), (3622, 22600), (4520, 18110), (5650, 14488), (7244, 11300), (9040, 9055)]