81671760

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37811}}^1$

素因数の和:37833

約数の個数: 80

約数和(自身を含む): 281321280

約数和(自身を除く): 199649520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 37811, 75622, 113433, 151244, 189055, 226866, 302488, 340299, 378110, 453732, 567165, 604976, 680598, 756220, 907464, 1020897, 1134330, 1361196, 1512440, 1701495, 1814928, 2041794, 2268660, 2722392, 3024880, 3402990, 4083588, 4537320, 5104485, 5444784, 6805980, 8167176, 9074640, 10208970, 13611960, 16334352, 20417940, 27223920, 40835880, 81671760]

約数ペア:

[(1, 81671760), (2, 40835880), (3, 27223920), (4, 20417940), (5, 16334352), (6, 13611960), (8, 10208970), (9, 9074640), (10, 8167176), (12, 6805980), (15, 5444784), (16, 5104485), (18, 4537320), (20, 4083588), (24, 3402990), (27, 3024880), (30, 2722392), (36, 2268660), (40, 2041794), (45, 1814928), (48, 1701495), (54, 1512440), (60, 1361196), (72, 1134330), (80, 1020897), (90, 907464), (108, 756220), (120, 680598), (135, 604976), (144, 567165), (180, 453732), (216, 378110), (240, 340299), (270, 302488), (360, 226866), (432, 189055), (540, 151244), (720, 113433), (1080, 75622), (2160, 37811)]