221897780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{1187}}^1$

素因数の和:1928

約数の個数: 48

約数和(自身を含む): 502951680

約数和(自身を除く): 281053900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 719, 1187, 1438, 2374, 2876, 3595, 4748, 5935, 7190, 9347, 11870, 14380, 15431, 18694, 23740, 30862, 37388, 46735, 61724, 77155, 93470, 154310, 186940, 308620, 853453, 1706906, 3413812, 4267265, 8534530, 11094889, 17069060, 22189778, 44379556, 55474445, 110948890, 221897780]

約数ペア:

[(1, 221897780), (2, 110948890), (4, 55474445), (5, 44379556), (10, 22189778), (13, 17069060), (20, 11094889), (26, 8534530), (52, 4267265), (65, 3413812), (130, 1706906), (260, 853453), (719, 308620), (1187, 186940), (1438, 154310), (2374, 93470), (2876, 77155), (3595, 61724), (4748, 46735), (5935, 37388), (7190, 30862), (9347, 23740), (11870, 18694), (14380, 15431)]