81641628

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^2\times {\mathrm{1429}}^1$

素因数の和:1488

約数の個数: 72

約数和(自身を含む): 221421200

約数和(自身を除く): 139779572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 207, 276, 414, 529, 621, 828, 1058, 1242, 1429, 1587, 2116, 2484, 2858, 3174, 4287, 4761, 5716, 6348, 8574, 9522, 12861, 14283, 17148, 19044, 25722, 28566, 32867, 38583, 51444, 57132, 65734, 77166, 98601, 131468, 154332, 197202, 295803, 394404, 591606, 755941, 887409, 1183212, 1511882, 1774818, 2267823, 3023764, 3549636, 4535646, 6803469, 9071292, 13606938, 20410407, 27213876, 40820814, 81641628]

約数ペア:

[(1, 81641628), (2, 40820814), (3, 27213876), (4, 20410407), (6, 13606938), (9, 9071292), (12, 6803469), (18, 4535646), (23, 3549636), (27, 3023764), (36, 2267823), (46, 1774818), (54, 1511882), (69, 1183212), (92, 887409), (108, 755941), (138, 591606), (207, 394404), (276, 295803), (414, 197202), (529, 154332), (621, 131468), (828, 98601), (1058, 77166), (1242, 65734), (1429, 57132), (1587, 51444), (2116, 38583), (2484, 32867), (2858, 28566), (3174, 25722), (4287, 19044), (4761, 17148), (5716, 14283), (6348, 12861), (8574, 9522)]