25757440

素因数分解:

$2^8\times 5^1\times {\mathrm{20123}}^1$

素因数の和:20144

約数の個数: 36

約数和(自身を含む): 61700184

約数和(自身を除く): 35942744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 20123, 40246, 80492, 100615, 160984, 201230, 321968, 402460, 643936, 804920, 1287872, 1609840, 2575744, 3219680, 5151488, 6439360, 12878720, 25757440]

約数ペア:

[(1, 25757440), (2, 12878720), (4, 6439360), (5, 5151488), (8, 3219680), (10, 2575744), (16, 1609840), (20, 1287872), (32, 804920), (40, 643936), (64, 402460), (80, 321968), (128, 201230), (160, 160984), (256, 100615), (320, 80492), (640, 40246), (1280, 20123)]