83991880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{42853}}^1$

素因数の和:42878

約数の個数: 48

約数和(自身を含む): 219841020

約数和(自身を除く): 135849140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 42853, 85706, 171412, 214265, 299971, 342824, 428530, 599942, 857060, 1199884, 1499855, 1714120, 2099797, 2399768, 2999710, 4199594, 5999420, 8399188, 10498985, 11998840, 16798376, 20997970, 41995940, 83991880]

約数ペア:

[(1, 83991880), (2, 41995940), (4, 20997970), (5, 16798376), (7, 11998840), (8, 10498985), (10, 8399188), (14, 5999420), (20, 4199594), (28, 2999710), (35, 2399768), (40, 2099797), (49, 1714120), (56, 1499855), (70, 1199884), (98, 857060), (140, 599942), (196, 428530), (245, 342824), (280, 299971), (392, 214265), (490, 171412), (980, 85706), (1960, 42853)]