81681804

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^2\times {\mathrm{2617}}^1$

素因数の和:2664

約数の個数: 72

約数和(自身を含む): 225043280

約数和(自身を除く): 143361476

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 102, 108, 153, 204, 289, 306, 459, 578, 612, 867, 918, 1156, 1734, 1836, 2601, 2617, 3468, 5202, 5234, 7803, 7851, 10404, 10468, 15606, 15702, 23553, 31212, 31404, 44489, 47106, 70659, 88978, 94212, 133467, 141318, 177956, 266934, 282636, 400401, 533868, 756313, 800802, 1201203, 1512626, 1601604, 2268939, 2402406, 3025252, 4537878, 4804812, 6806817, 9075756, 13613634, 20420451, 27227268, 40840902, 81681804]

約数ペア:

[(1, 81681804), (2, 40840902), (3, 27227268), (4, 20420451), (6, 13613634), (9, 9075756), (12, 6806817), (17, 4804812), (18, 4537878), (27, 3025252), (34, 2402406), (36, 2268939), (51, 1601604), (54, 1512626), (68, 1201203), (102, 800802), (108, 756313), (153, 533868), (204, 400401), (289, 282636), (306, 266934), (459, 177956), (578, 141318), (612, 133467), (867, 94212), (918, 88978), (1156, 70659), (1734, 47106), (1836, 44489), (2601, 31404), (2617, 31212), (3468, 23553), (5202, 15702), (5234, 15606), (7803, 10468), (7851, 10404)]