81664740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3517}}^1$

素因数の和:3578

約数の個数: 96

約数和(自身を含む): 260050560

約数和(自身を除く): 178385820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 86, 90, 108, 129, 135, 172, 180, 215, 258, 270, 387, 430, 516, 540, 645, 774, 860, 1161, 1290, 1548, 1935, 2322, 2580, 3517, 3870, 4644, 5805, 7034, 7740, 10551, 11610, 14068, 17585, 21102, 23220, 31653, 35170, 42204, 52755, 63306, 70340, 94959, 105510, 126612, 151231, 158265, 189918, 211020, 302462, 316530, 379836, 453693, 474795, 604924, 633060, 756155, 907386, 949590, 1361079, 1512310, 1814772, 1899180, 2268465, 2722158, 3024620, 4083237, 4536930, 5444316, 6805395, 8166474, 9073860, 13610790, 16332948, 20416185, 27221580, 40832370, 81664740]

約数ペア:

[(1, 81664740), (2, 40832370), (3, 27221580), (4, 20416185), (5, 16332948), (6, 13610790), (9, 9073860), (10, 8166474), (12, 6805395), (15, 5444316), (18, 4536930), (20, 4083237), (27, 3024620), (30, 2722158), (36, 2268465), (43, 1899180), (45, 1814772), (54, 1512310), (60, 1361079), (86, 949590), (90, 907386), (108, 756155), (129, 633060), (135, 604924), (172, 474795), (180, 453693), (215, 379836), (258, 316530), (270, 302462), (387, 211020), (430, 189918), (516, 158265), (540, 151231), (645, 126612), (774, 105510), (860, 94959), (1161, 70340), (1290, 63306), (1548, 52755), (1935, 42204), (2322, 35170), (2580, 31653), (3517, 23220), (3870, 21102), (4644, 17585), (5805, 14068), (7034, 11610), (7740, 10551)]