78724600

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20717}}^1$

素因数の和:20752

約数の個数: 48

約数和(自身を含む): 192677400

約数和(自身を除く): 113952800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 20717, 41434, 82868, 103585, 165736, 207170, 393623, 414340, 517925, 787246, 828680, 1035850, 1574492, 1968115, 2071700, 3148984, 3936230, 4143400, 7872460, 9840575, 15744920, 19681150, 39362300, 78724600]

約数ペア:

[(1, 78724600), (2, 39362300), (4, 19681150), (5, 15744920), (8, 9840575), (10, 7872460), (19, 4143400), (20, 3936230), (25, 3148984), (38, 2071700), (40, 1968115), (50, 1574492), (76, 1035850), (95, 828680), (100, 787246), (152, 517925), (190, 414340), (200, 393623), (380, 207170), (475, 165736), (760, 103585), (950, 82868), (1900, 41434), (3800, 20717)]