20878662016

素因数分解:

$2^7\times {\mathrm{619}}^1\times {\mathrm{263513}}^1$

素因数の和:264146

約数の個数: 32

約数和(自身を含む): 41661563400

約数和(自身を除く): 20782901384

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 619, 1238, 2476, 4952, 9904, 19808, 39616, 79232, 263513, 527026, 1054052, 2108104, 4216208, 8432416, 16864832, 33729664, 163114547, 326229094, 652458188, 1304916376, 2609832752, 5219665504, 10439331008, 20878662016]

約数ペア:

[(1, 20878662016), (2, 10439331008), (4, 5219665504), (8, 2609832752), (16, 1304916376), (32, 652458188), (64, 326229094), (128, 163114547), (619, 33729664), (1238, 16864832), (2476, 8432416), (4952, 4216208), (9904, 2108104), (19808, 1054052), (39616, 527026), (79232, 263513)]