39959200

素因数分解:

$2^5\times 5^2\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:470

約数の個数: 72

約数和(自身を含む): 98431200

約数和(自身を除く): 58472000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 199, 200, 251, 398, 400, 502, 796, 800, 995, 1004, 1255, 1592, 1990, 2008, 2510, 3184, 3980, 4016, 4975, 5020, 6275, 6368, 7960, 8032, 9950, 10040, 12550, 15920, 19900, 20080, 25100, 31840, 39800, 40160, 49949, 50200, 79600, 99898, 100400, 159200, 199796, 200800, 249745, 399592, 499490, 799184, 998980, 1248725, 1598368, 1997960, 2497450, 3995920, 4994900, 7991840, 9989800, 19979600, 39959200]

約数ペア:

[(1, 39959200), (2, 19979600), (4, 9989800), (5, 7991840), (8, 4994900), (10, 3995920), (16, 2497450), (20, 1997960), (25, 1598368), (32, 1248725), (40, 998980), (50, 799184), (80, 499490), (100, 399592), (160, 249745), (199, 200800), (200, 199796), (251, 159200), (398, 100400), (400, 99898), (502, 79600), (796, 50200), (800, 49949), (995, 40160), (1004, 39800), (1255, 31840), (1592, 25100), (1990, 20080), (2008, 19900), (2510, 15920), (3184, 12550), (3980, 10040), (4016, 9950), (4975, 8032), (5020, 7960), (6275, 6368)]