78111200

素因数分解:

$2^5\times 5^2\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:660

約数の個数: 72

約数和(自身を含む): 191940840

約数和(自身を除く): 113829640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 251, 389, 400, 502, 778, 800, 1004, 1255, 1556, 1945, 2008, 2510, 3112, 3890, 4016, 5020, 6224, 6275, 7780, 8032, 9725, 10040, 12448, 12550, 15560, 19450, 20080, 25100, 31120, 38900, 40160, 50200, 62240, 77800, 97639, 100400, 155600, 195278, 200800, 311200, 390556, 488195, 781112, 976390, 1562224, 1952780, 2440975, 3124448, 3905560, 4881950, 7811120, 9763900, 15622240, 19527800, 39055600, 78111200]

約数ペア:

[(1, 78111200), (2, 39055600), (4, 19527800), (5, 15622240), (8, 9763900), (10, 7811120), (16, 4881950), (20, 3905560), (25, 3124448), (32, 2440975), (40, 1952780), (50, 1562224), (80, 976390), (100, 781112), (160, 488195), (200, 390556), (251, 311200), (389, 200800), (400, 195278), (502, 155600), (778, 100400), (800, 97639), (1004, 77800), (1255, 62240), (1556, 50200), (1945, 40160), (2008, 38900), (2510, 31120), (3112, 25100), (3890, 20080), (4016, 19450), (5020, 15560), (6224, 12550), (6275, 12448), (7780, 10040), (8032, 9725)]