81515018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{977}}^1\times {\mathrm{3209}}^1$

素因数の和:4201

約数の個数: 16

約数和(自身を含む): 131853960

約数和(自身を除く): 50338942

約数列:

[1, 2, 13, 26, 977, 1954, 3209, 6418, 12701, 25402, 41717, 83434, 3135193, 6270386, 40757509, 81515018]

約数ペア:

[(1, 81515018), (2, 40757509), (13, 6270386), (26, 3135193), (977, 83434), (1954, 41717), (3209, 25402), (6418, 12701)]