28326640

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{883}}^1$

素因数の和:1297

約数の個数: 40

約数和(自身を含む): 66098448

約数和(自身を除く): 37771808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 883, 1604, 1766, 2005, 3208, 3532, 4010, 4415, 6416, 7064, 8020, 8830, 14128, 16040, 17660, 32080, 35320, 70640, 354083, 708166, 1416332, 1770415, 2832664, 3540830, 5665328, 7081660, 14163320, 28326640]

約数ペア:

[(1, 28326640), (2, 14163320), (4, 7081660), (5, 5665328), (8, 3540830), (10, 2832664), (16, 1770415), (20, 1416332), (40, 708166), (80, 354083), (401, 70640), (802, 35320), (883, 32080), (1604, 17660), (1766, 16040), (2005, 14128), (3208, 8830), (3532, 8020), (4010, 7064), (4415, 6416)]