81999544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{2539}}^1$

素因数の和:2923

約数の個数: 32

約数和(自身を含む): 168249600

約数和(自身を除く): 86250056

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 367, 734, 1468, 2539, 2936, 4037, 5078, 8074, 10156, 16148, 20312, 27929, 32296, 55858, 111716, 223432, 931813, 1863626, 3727252, 7454504, 10249943, 20499886, 40999772, 81999544]

約数ペア:

[(1, 81999544), (2, 40999772), (4, 20499886), (8, 10249943), (11, 7454504), (22, 3727252), (44, 1863626), (88, 931813), (367, 223432), (734, 111716), (1468, 55858), (2539, 32296), (2936, 27929), (4037, 20312), (5078, 16148), (8074, 10156)]