20218279040

素因数分解:

$2^7\times 5^1\times {\mathrm{31591061}}^1$

素因数の和:31591080

約数の個数: 32

約数和(自身を含む): 48334324860

約数和(自身を除く): 28116045820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31591061, 63182122, 126364244, 157955305, 252728488, 315910610, 505456976, 631821220, 1010913952, 1263642440, 2021827904, 2527284880, 4043655808, 5054569760, 10109139520, 20218279040]

約数ペア:

[(1, 20218279040), (2, 10109139520), (4, 5054569760), (5, 4043655808), (8, 2527284880), (10, 2021827904), (16, 1263642440), (20, 1010913952), (32, 631821220), (40, 505456976), (64, 315910610), (80, 252728488), (128, 157955305), (160, 126364244), (320, 63182122), (640, 31591061)]