81121508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{739}}^1\times {\mathrm{2111}}^1$

素因数の和:2867

約数の個数: 24

約数和(自身を含む): 153162240

約数和(自身を除く): 72040732

約数列:

[1, 2, 4, 13, 26, 52, 739, 1478, 2111, 2956, 4222, 8444, 9607, 19214, 27443, 38428, 54886, 109772, 1560029, 3120058, 6240116, 20280377, 40560754, 81121508]

約数ペア:

[(1, 81121508), (2, 40560754), (4, 20280377), (13, 6240116), (26, 3120058), (52, 1560029), (739, 109772), (1478, 54886), (2111, 38428), (2956, 27443), (4222, 19214), (8444, 9607)]