81945328

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2473}}^1$

素因数の和:2609

約数の個数: 40

約数和(自身を含む): 168726800

約数和(自身を除く): 86781472

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 109, 152, 218, 304, 436, 872, 1744, 2071, 2473, 4142, 4946, 8284, 9892, 16568, 19784, 33136, 39568, 46987, 93974, 187948, 269557, 375896, 539114, 751792, 1078228, 2156456, 4312912, 5121583, 10243166, 20486332, 40972664, 81945328]

約数ペア:

[(1, 81945328), (2, 40972664), (4, 20486332), (8, 10243166), (16, 5121583), (19, 4312912), (38, 2156456), (76, 1078228), (109, 751792), (152, 539114), (218, 375896), (304, 269557), (436, 187948), (872, 93974), (1744, 46987), (2071, 39568), (2473, 33136), (4142, 19784), (4946, 16568), (8284, 9892)]