78355840

素因数分解:

$2^7\times 5^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1$

素因数の和:851

約数の個数: 64

約数和(自身を含む): 188593920

約数和(自身を除く): 110238080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 191, 320, 382, 640, 641, 764, 955, 1282, 1528, 1910, 2564, 3056, 3205, 3820, 5128, 6112, 6410, 7640, 10256, 12224, 12820, 15280, 20512, 24448, 25640, 30560, 41024, 51280, 61120, 82048, 102560, 122240, 122431, 205120, 244862, 410240, 489724, 612155, 979448, 1224310, 1958896, 2448620, 3917792, 4897240, 7835584, 9794480, 15671168, 19588960, 39177920, 78355840]

約数ペア:

[(1, 78355840), (2, 39177920), (4, 19588960), (5, 15671168), (8, 9794480), (10, 7835584), (16, 4897240), (20, 3917792), (32, 2448620), (40, 1958896), (64, 1224310), (80, 979448), (128, 612155), (160, 489724), (191, 410240), (320, 244862), (382, 205120), (640, 122431), (641, 122240), (764, 102560), (955, 82048), (1282, 61120), (1528, 51280), (1910, 41024), (2564, 30560), (3056, 25640), (3205, 24448), (3820, 20512), (5128, 15280), (6112, 12820), (6410, 12224), (7640, 10256)]