81531870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{9029}}^1$

素因数の和:9089

約数の個数: 64

約数和(自身を含む): 228856320

約数和(自身を除く): 147324450

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 3010, 4515, 9029, 9030, 18058, 27087, 45145, 54174, 63203, 90290, 126406, 135435, 189609, 270870, 316015, 379218, 388247, 632030, 776494, 948045, 1164741, 1896090, 1941235, 2329482, 2717729, 3882470, 5435458, 5823705, 8153187, 11647410, 13588645, 16306374, 27177290, 40765935, 81531870]

約数ペア:

[(1, 81531870), (2, 40765935), (3, 27177290), (5, 16306374), (6, 13588645), (7, 11647410), (10, 8153187), (14, 5823705), (15, 5435458), (21, 3882470), (30, 2717729), (35, 2329482), (42, 1941235), (43, 1896090), (70, 1164741), (86, 948045), (105, 776494), (129, 632030), (210, 388247), (215, 379218), (258, 316015), (301, 270870), (430, 189609), (602, 135435), (645, 126406), (903, 90290), (1290, 63203), (1505, 54174), (1806, 45145), (3010, 27087), (4515, 18058), (9029, 9030)]