1290496

素因数分解:

$2^8\times {\mathrm{71}}^2$

素因数の和:158

約数の個数: 27

約数和(自身を含む): 2612743

約数和(自身を除く): 1322247

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1136, 2272, 4544, 5041, 9088, 10082, 18176, 20164, 40328, 80656, 161312, 322624, 645248, 1290496]

約数ペア:

[(1, 1290496), (2, 645248), (4, 322624), (8, 161312), (16, 80656), (32, 40328), (64, 20164), (71, 18176), (128, 10082), (142, 9088), (256, 5041), (284, 4544), (568, 2272)]