77648980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{57947}}^1$

素因数の和:58023

約数の個数: 24

約数和(自身を含む): 165499488

約数和(自身を除く): 87850508

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 57947, 115894, 231788, 289735, 579470, 1158940, 3882449, 7764898, 15529796, 19412245, 38824490, 77648980]

約数ペア:

[(1, 77648980), (2, 38824490), (4, 19412245), (5, 15529796), (10, 7764898), (20, 3882449), (67, 1158940), (134, 579470), (268, 289735), (335, 231788), (670, 115894), (1340, 57947)]