81259215

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4723}}^1$

素因数の和:4799

約数の個数: 32

約数和(自身を含む): 137865216

約数和(自身を除く): 56606001

約数列:

[1, 3, 5, 15, 31, 37, 93, 111, 155, 185, 465, 555, 1147, 3441, 4723, 5735, 14169, 17205, 23615, 70845, 146413, 174751, 439239, 524253, 732065, 873755, 2196195, 2621265, 5417281, 16251843, 27086405, 81259215]

約数ペア:

[(1, 81259215), (3, 27086405), (5, 16251843), (15, 5417281), (31, 2621265), (37, 2196195), (93, 873755), (111, 732065), (155, 524253), (185, 439239), (465, 174751), (555, 146413), (1147, 70845), (3441, 23615), (4723, 17205), (5735, 14169)]