20218014976

素因数分解:

$2^8\times {\mathrm{78976621}}^1$

素因数の和:78976637

約数の個数: 18

約数和(自身を含む): 40357053842

約数和(自身を除く): 20139038866

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78976621, 157953242, 315906484, 631812968, 1263625936, 2527251872, 5054503744, 10109007488, 20218014976]

約数ペア:

[(1, 20218014976), (2, 10109007488), (4, 5054503744), (8, 2527251872), (16, 1263625936), (32, 631812968), (64, 315906484), (128, 157953242), (256, 78976621)]