81128516

素因数分解:

$2^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{4987}}^1$

素因数の和:5088

約数の個数: 36

約数和(自身を含む): 167177808

約数和(自身を除く): 86049292

約数列:

[1, 2, 4, 7, 14, 28, 49, 83, 98, 166, 196, 332, 581, 1162, 2324, 4067, 4987, 8134, 9974, 16268, 19948, 34909, 69818, 139636, 244363, 413921, 488726, 827842, 977452, 1655684, 2897447, 5794894, 11589788, 20282129, 40564258, 81128516]

約数ペア:

[(1, 81128516), (2, 40564258), (4, 20282129), (7, 11589788), (14, 5794894), (28, 2897447), (49, 1655684), (83, 977452), (98, 827842), (166, 488726), (196, 413921), (332, 244363), (581, 139636), (1162, 69818), (2324, 34909), (4067, 19948), (4987, 16268), (8134, 9974)]