81361712

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{1699}}^1$

素因数の和:1821

約数の個数: 40

約数和(自身を含む): 163791600

約数和(自身を除く): 82429888

約数列:

[1, 2, 4, 8, 16, 41, 73, 82, 146, 164, 292, 328, 584, 656, 1168, 1699, 2993, 3398, 5986, 6796, 11972, 13592, 23944, 27184, 47888, 69659, 124027, 139318, 248054, 278636, 496108, 557272, 992216, 1114544, 1984432, 5085107, 10170214, 20340428, 40680856, 81361712]

約数ペア:

[(1, 81361712), (2, 40680856), (4, 20340428), (8, 10170214), (16, 5085107), (41, 1984432), (73, 1114544), (82, 992216), (146, 557272), (164, 496108), (292, 278636), (328, 248054), (584, 139318), (656, 124027), (1168, 69659), (1699, 47888), (2993, 27184), (3398, 23944), (5986, 13592), (6796, 11972)]