81314784

素因数分解:

$2^5\times 3^2\times {\mathrm{331}}^1\times {\mathrm{853}}^1$

素因数の和:1200

約数の個数: 72

約数和(自身を含む): 232209432

約数和(自身を除く): 150894648

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 331, 662, 853, 993, 1324, 1706, 1986, 2559, 2648, 2979, 3412, 3972, 5118, 5296, 5958, 6824, 7677, 7944, 10236, 10592, 11916, 13648, 15354, 15888, 20472, 23832, 27296, 30708, 31776, 40944, 47664, 61416, 81888, 95328, 122832, 245664, 282343, 564686, 847029, 1129372, 1694058, 2258744, 2541087, 3388116, 4517488, 5082174, 6776232, 9034976, 10164348, 13552464, 20328696, 27104928, 40657392, 81314784]

約数ペア:

[(1, 81314784), (2, 40657392), (3, 27104928), (4, 20328696), (6, 13552464), (8, 10164348), (9, 9034976), (12, 6776232), (16, 5082174), (18, 4517488), (24, 3388116), (32, 2541087), (36, 2258744), (48, 1694058), (72, 1129372), (96, 847029), (144, 564686), (288, 282343), (331, 245664), (662, 122832), (853, 95328), (993, 81888), (1324, 61416), (1706, 47664), (1986, 40944), (2559, 31776), (2648, 30708), (2979, 27296), (3412, 23832), (3972, 20472), (5118, 15888), (5296, 15354), (5958, 13648), (6824, 11916), (7677, 10592), (7944, 10236)]