16655020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1069}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 37749600

約数和(自身を除く): 21094580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1069, 1558, 2138, 3116, 3895, 4276, 5345, 7790, 10690, 15580, 20311, 21380, 40622, 43829, 81244, 87658, 101555, 175316, 203110, 219145, 406220, 438290, 832751, 876580, 1665502, 3331004, 4163755, 8327510, 16655020]

約数ペア:

[(1, 16655020), (2, 8327510), (4, 4163755), (5, 3331004), (10, 1665502), (19, 876580), (20, 832751), (38, 438290), (41, 406220), (76, 219145), (82, 203110), (95, 175316), (164, 101555), (190, 87658), (205, 81244), (380, 43829), (410, 40622), (779, 21380), (820, 20311), (1069, 15580), (1558, 10690), (2138, 7790), (3116, 5345), (3895, 4276)]