199215555

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{997}}^1$

素因数の和:1196

約数の個数: 64

約数和(自身を含む): 400094208

約数和(自身を除く): 200878653

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 173, 231, 385, 519, 865, 997, 1155, 1211, 1903, 2595, 2991, 3633, 4985, 5709, 6055, 6979, 9515, 10967, 13321, 14955, 18165, 20937, 28545, 32901, 34895, 39963, 54835, 66605, 76769, 104685, 164505, 172481, 199815, 230307, 383845, 517443, 862405, 1151535, 1207367, 1897291, 2587215, 3622101, 5691873, 6036835, 9486455, 13281037, 18110505, 28459365, 39843111, 66405185, 199215555]

約数ペア:

[(1, 199215555), (3, 66405185), (5, 39843111), (7, 28459365), (11, 18110505), (15, 13281037), (21, 9486455), (33, 6036835), (35, 5691873), (55, 3622101), (77, 2587215), (105, 1897291), (165, 1207367), (173, 1151535), (231, 862405), (385, 517443), (519, 383845), (865, 230307), (997, 199815), (1155, 172481), (1211, 164505), (1903, 104685), (2595, 76769), (2991, 66605), (3633, 54835), (4985, 39963), (5709, 34895), (6055, 32901), (6979, 28545), (9515, 20937), (10967, 18165), (13321, 14955)]