20871040

素因数分解:

$2^7\times 5^1\times {\mathrm{32611}}^1$

素因数の和:32630

約数の個数: 32

約数和(自身を含む): 49896360

約数和(自身を除く): 29025320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32611, 65222, 130444, 163055, 260888, 326110, 521776, 652220, 1043552, 1304440, 2087104, 2608880, 4174208, 5217760, 10435520, 20871040]

約数ペア:

[(1, 20871040), (2, 10435520), (4, 5217760), (5, 4174208), (8, 2608880), (10, 2087104), (16, 1304440), (20, 1043552), (32, 652220), (40, 521776), (64, 326110), (80, 260888), (128, 163055), (160, 130444), (320, 65222), (640, 32611)]