640444149

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{617}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 992038320

約数和(自身を除く): 351594171

約数列:

[1, 3, 9, 29, 41, 87, 97, 123, 261, 291, 369, 617, 873, 1189, 1851, 2813, 3567, 3977, 5553, 8439, 10701, 11931, 17893, 25297, 25317, 35793, 53679, 59849, 75891, 115333, 161037, 179547, 227673, 345999, 538641, 733613, 1037997, 1735621, 2200839, 2453809, 5206863, 6602517, 7361427, 15620589, 22084281, 71160461, 213481383, 640444149]

約数ペア:

[(1, 640444149), (3, 213481383), (9, 71160461), (29, 22084281), (41, 15620589), (87, 7361427), (97, 6602517), (123, 5206863), (261, 2453809), (291, 2200839), (369, 1735621), (617, 1037997), (873, 733613), (1189, 538641), (1851, 345999), (2813, 227673), (3567, 179547), (3977, 161037), (5553, 115333), (8439, 75891), (10701, 59849), (11931, 53679), (17893, 35793), (25297, 25317)]