640382061

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:946

約数の個数: 64

約数和(自身を含む): 1053665280

約数和(自身を除く): 413283219

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 73, 187, 209, 219, 323, 561, 627, 803, 823, 969, 1241, 1387, 2409, 2469, 3553, 3723, 4161, 9053, 10659, 13651, 13991, 15257, 15637, 23579, 27159, 40953, 41973, 45771, 46911, 60079, 70737, 153901, 172007, 180237, 259369, 265829, 461703, 516021, 660869, 778107, 797487, 1021343, 1141501, 1982607, 2924119, 3064029, 3424503, 8772357, 11234773, 12556511, 19405517, 33704319, 37669533, 58216551, 213460687, 640382061]

約数ペア:

[(1, 640382061), (3, 213460687), (11, 58216551), (17, 37669533), (19, 33704319), (33, 19405517), (51, 12556511), (57, 11234773), (73, 8772357), (187, 3424503), (209, 3064029), (219, 2924119), (323, 1982607), (561, 1141501), (627, 1021343), (803, 797487), (823, 778107), (969, 660869), (1241, 516021), (1387, 461703), (2409, 265829), (2469, 259369), (3553, 180237), (3723, 172007), (4161, 153901), (9053, 70737), (10659, 60079), (13651, 46911), (13991, 45771), (15257, 41973), (15637, 40953), (23579, 27159)]