71558840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{18443}}^1$

素因数の和:18551

約数の個数: 32

約数和(自身を含む): 162676080

約数和(自身を除く): 91117240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 18443, 36886, 73772, 92215, 147544, 184430, 368860, 737720, 1788971, 3577942, 7155884, 8944855, 14311768, 17889710, 35779420, 71558840]

約数ペア:

[(1, 71558840), (2, 35779420), (4, 17889710), (5, 14311768), (8, 8944855), (10, 7155884), (20, 3577942), (40, 1788971), (97, 737720), (194, 368860), (388, 184430), (485, 147544), (776, 92215), (970, 73772), (1940, 36886), (3880, 18443)]