207670720

素因数分解:

$2^6\times 5^1\times {\mathrm{648971}}^1$

素因数の和:648988

約数の個数: 28

約数和(自身を含む): 494516664

約数和(自身を除く): 286845944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 648971, 1297942, 2595884, 3244855, 5191768, 6489710, 10383536, 12979420, 20767072, 25958840, 41534144, 51917680, 103835360, 207670720]

約数ペア:

[(1, 207670720), (2, 103835360), (4, 51917680), (5, 41534144), (8, 25958840), (10, 20767072), (16, 12979420), (20, 10383536), (32, 6489710), (40, 5191768), (64, 3244855), (80, 2595884), (160, 1297942), (320, 648971)]