219527900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2687}}^1$

素因数の和:2763

約数の個数: 72

約数和(自身を含む): 513300480

約数和(自身を除く): 293772580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 172, 190, 215, 380, 430, 475, 817, 860, 950, 1075, 1634, 1900, 2150, 2687, 3268, 4085, 4300, 5374, 8170, 10748, 13435, 16340, 20425, 26870, 40850, 51053, 53740, 67175, 81700, 102106, 115541, 134350, 204212, 231082, 255265, 268700, 462164, 510530, 577705, 1021060, 1155410, 1276325, 2195279, 2310820, 2552650, 2888525, 4390558, 5105300, 5777050, 8781116, 10976395, 11554100, 21952790, 43905580, 54881975, 109763950, 219527900]

約数ペア:

[(1, 219527900), (2, 109763950), (4, 54881975), (5, 43905580), (10, 21952790), (19, 11554100), (20, 10976395), (25, 8781116), (38, 5777050), (43, 5105300), (50, 4390558), (76, 2888525), (86, 2552650), (95, 2310820), (100, 2195279), (172, 1276325), (190, 1155410), (215, 1021060), (380, 577705), (430, 510530), (475, 462164), (817, 268700), (860, 255265), (950, 231082), (1075, 204212), (1634, 134350), (1900, 115541), (2150, 102106), (2687, 81700), (3268, 67175), (4085, 53740), (4300, 51053), (5374, 40850), (8170, 26870), (10748, 20425), (13435, 16340)]