81261200

素因数分解:

$2^4\times 5^2\times {\mathrm{223}}^1\times {\mathrm{911}}^1$

素因数の和:1152

約数の個数: 60

約数和(自身を含む): 196320768

約数和(自身を除く): 115059568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 223, 400, 446, 892, 911, 1115, 1784, 1822, 2230, 3568, 3644, 4460, 4555, 5575, 7288, 8920, 9110, 11150, 14576, 17840, 18220, 22300, 22775, 36440, 44600, 45550, 72880, 89200, 91100, 182200, 203153, 364400, 406306, 812612, 1015765, 1625224, 2031530, 3250448, 4063060, 5078825, 8126120, 10157650, 16252240, 20315300, 40630600, 81261200]

約数ペア:

[(1, 81261200), (2, 40630600), (4, 20315300), (5, 16252240), (8, 10157650), (10, 8126120), (16, 5078825), (20, 4063060), (25, 3250448), (40, 2031530), (50, 1625224), (80, 1015765), (100, 812612), (200, 406306), (223, 364400), (400, 203153), (446, 182200), (892, 91100), (911, 89200), (1115, 72880), (1784, 45550), (1822, 44600), (2230, 36440), (3568, 22775), (3644, 22300), (4460, 18220), (4555, 17840), (5575, 14576), (7288, 11150), (8920, 9110)]