20800676

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{659}}^1$

素因数の和:1283

約数の個数: 24

約数和(自身を含む): 39325440

約数和(自身を除く): 18524764

約数列:

[1, 2, 4, 13, 26, 52, 607, 659, 1214, 1318, 2428, 2636, 7891, 8567, 15782, 17134, 31564, 34268, 400013, 800026, 1600052, 5200169, 10400338, 20800676]

約数ペア:

[(1, 20800676), (2, 10400338), (4, 5200169), (13, 1600052), (26, 800026), (52, 400013), (607, 34268), (659, 31564), (1214, 17134), (1318, 15782), (2428, 8567), (2636, 7891)]