81990702

素因数分解:

$2^1\times 3^2\times {\mathrm{229}}^1\times {\mathrm{19891}}^1$

素因数の和:20128

約数の個数: 24

約数和(自身を含む): 178431240

約数和(自身を除く): 96440538

約数列:

[1, 2, 3, 6, 9, 18, 229, 458, 687, 1374, 2061, 4122, 19891, 39782, 59673, 119346, 179019, 358038, 4555039, 9110078, 13665117, 27330234, 40995351, 81990702]

約数ペア:

[(1, 81990702), (2, 40995351), (3, 27330234), (6, 13665117), (9, 9110078), (18, 4555039), (229, 358038), (458, 179019), (687, 119346), (1374, 59673), (2061, 39782), (4122, 19891)]