81191768

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{19861}}^1$

素因数の和:19947

約数の個数: 32

約数和(自身を含む): 176374560

約数和(自身を除く): 95182792

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 19861, 39722, 79444, 139027, 158888, 278054, 556108, 1112216, 1449853, 2899706, 5799412, 10148971, 11598824, 20297942, 40595884, 81191768]

約数ペア:

[(1, 81191768), (2, 40595884), (4, 20297942), (7, 11598824), (8, 10148971), (14, 5799412), (28, 2899706), (56, 1449853), (73, 1112216), (146, 556108), (292, 278054), (511, 158888), (584, 139027), (1022, 79444), (2044, 39722), (4088, 19861)]