81865275

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{29501}}^1$

素因数の和:29551

約数の個数: 24

約数和(自身を含む): 139013424

約数和(自身を除く): 57148149

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 185, 555, 925, 2775, 29501, 88503, 147505, 442515, 737525, 1091537, 2212575, 3274611, 5457685, 16373055, 27288425, 81865275]

約数ペア:

[(1, 81865275), (3, 27288425), (5, 16373055), (15, 5457685), (25, 3274611), (37, 2212575), (75, 1091537), (111, 737525), (185, 442515), (555, 147505), (925, 88503), (2775, 29501)]