19207480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 46080000

約数和(自身を除く): 26872520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 127, 152, 190, 199, 254, 380, 398, 508, 635, 760, 796, 995, 1016, 1270, 1592, 1990, 2413, 2540, 3781, 3980, 4826, 5080, 7562, 7960, 9652, 12065, 15124, 18905, 19304, 24130, 25273, 30248, 37810, 48260, 50546, 75620, 96520, 101092, 126365, 151240, 202184, 252730, 480187, 505460, 960374, 1010920, 1920748, 2400935, 3841496, 4801870, 9603740, 19207480]

約数ペア:

[(1, 19207480), (2, 9603740), (4, 4801870), (5, 3841496), (8, 2400935), (10, 1920748), (19, 1010920), (20, 960374), (38, 505460), (40, 480187), (76, 252730), (95, 202184), (127, 151240), (152, 126365), (190, 101092), (199, 96520), (254, 75620), (380, 50546), (398, 48260), (508, 37810), (635, 30248), (760, 25273), (796, 24130), (995, 19304), (1016, 18905), (1270, 15124), (1592, 12065), (1990, 9652), (2413, 7960), (2540, 7562), (3781, 5080), (3980, 4826)]