644237883

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1129}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 1015372800

約数和(自身を除く): 371134917

約数列:

[1, 3, 9, 19, 47, 57, 71, 141, 171, 213, 423, 639, 893, 1129, 1349, 2679, 3337, 3387, 4047, 8037, 10011, 10161, 12141, 21451, 30033, 53063, 63403, 64353, 80159, 159189, 190209, 193059, 240477, 477567, 570627, 721431, 1008197, 1523021, 3024591, 3767473, 4569063, 9073773, 11302419, 13707189, 33907257, 71581987, 214745961, 644237883]

約数ペア:

[(1, 644237883), (3, 214745961), (9, 71581987), (19, 33907257), (47, 13707189), (57, 11302419), (71, 9073773), (141, 4569063), (171, 3767473), (213, 3024591), (423, 1523021), (639, 1008197), (893, 721431), (1129, 570627), (1349, 477567), (2679, 240477), (3337, 193059), (3387, 190209), (4047, 159189), (8037, 80159), (10011, 64353), (10161, 63403), (12141, 53063), (21451, 30033)]