31990720

素因数分解:

$2^6\times 5^1\times {\mathrm{99971}}^1$

素因数の和:99988

約数の個数: 28

約数和(自身を含む): 76178664

約数和(自身を除く): 44187944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 99971, 199942, 399884, 499855, 799768, 999710, 1599536, 1999420, 3199072, 3998840, 6398144, 7997680, 15995360, 31990720]

約数ペア:

[(1, 31990720), (2, 15995360), (4, 7997680), (5, 6398144), (8, 3998840), (10, 3199072), (16, 1999420), (20, 1599536), (32, 999710), (40, 799768), (64, 499855), (80, 399884), (160, 199942), (320, 99971)]