81296380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21737}}^1$

素因数の和:21774

約数の個数: 48

約数和(自身を含む): 197207136

約数和(自身を除く): 115910756

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 21737, 43474, 86948, 108685, 217370, 239107, 369529, 434740, 478214, 739058, 956428, 1195535, 1478116, 1847645, 2391070, 3695290, 4064819, 4782140, 7390580, 8129638, 16259276, 20324095, 40648190, 81296380]

約数ペア:

[(1, 81296380), (2, 40648190), (4, 20324095), (5, 16259276), (10, 8129638), (11, 7390580), (17, 4782140), (20, 4064819), (22, 3695290), (34, 2391070), (44, 1847645), (55, 1478116), (68, 1195535), (85, 956428), (110, 739058), (170, 478214), (187, 434740), (220, 369529), (340, 239107), (374, 217370), (748, 108685), (935, 86948), (1870, 43474), (3740, 21737)]