78744800

素因数分解:

$2^5\times 5^2\times {\mathrm{257}}^1\times {\mathrm{383}}^1$

素因数の和:660

約数の個数: 72

約数和(自身を含む): 193487616

約数和(自身を除く): 114742816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 257, 383, 400, 514, 766, 800, 1028, 1285, 1532, 1915, 2056, 2570, 3064, 3830, 4112, 5140, 6128, 6425, 7660, 8224, 9575, 10280, 12256, 12850, 15320, 19150, 20560, 25700, 30640, 38300, 41120, 51400, 61280, 76600, 98431, 102800, 153200, 196862, 205600, 306400, 393724, 492155, 787448, 984310, 1574896, 1968620, 2460775, 3149792, 3937240, 4921550, 7874480, 9843100, 15748960, 19686200, 39372400, 78744800]

約数ペア:

[(1, 78744800), (2, 39372400), (4, 19686200), (5, 15748960), (8, 9843100), (10, 7874480), (16, 4921550), (20, 3937240), (25, 3149792), (32, 2460775), (40, 1968620), (50, 1574896), (80, 984310), (100, 787448), (160, 492155), (200, 393724), (257, 306400), (383, 205600), (400, 196862), (514, 153200), (766, 102800), (800, 98431), (1028, 76600), (1285, 61280), (1532, 51400), (1915, 41120), (2056, 38300), (2570, 30640), (3064, 25700), (3830, 20560), (4112, 19150), (5140, 15320), (6128, 12850), (6425, 12256), (7660, 10280), (8224, 9575)]