18862160

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1721}}^1$

素因数の和:1871

約数の個数: 40

約数和(自身を含む): 44200296

約数和(自身を除く): 25338136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1721, 2192, 2740, 3442, 5480, 6884, 8605, 10960, 13768, 17210, 27536, 34420, 68840, 137680, 235777, 471554, 943108, 1178885, 1886216, 2357770, 3772432, 4715540, 9431080, 18862160]

約数ペア:

[(1, 18862160), (2, 9431080), (4, 4715540), (5, 3772432), (8, 2357770), (10, 1886216), (16, 1178885), (20, 943108), (40, 471554), (80, 235777), (137, 137680), (274, 68840), (548, 34420), (685, 27536), (1096, 17210), (1370, 13768), (1721, 10960), (2192, 8605), (2740, 6884), (3442, 5480)]