18670280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9931}}^1$

素因数の和:9989

約数の個数: 32

約数和(自身を含む): 42906240

約数和(自身を除く): 24235960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 9931, 19862, 39724, 49655, 79448, 99310, 198620, 397240, 466757, 933514, 1867028, 2333785, 3734056, 4667570, 9335140, 18670280]

約数ペア:

[(1, 18670280), (2, 9335140), (4, 4667570), (5, 3734056), (8, 2333785), (10, 1867028), (20, 933514), (40, 466757), (47, 397240), (94, 198620), (188, 99310), (235, 79448), (376, 49655), (470, 39724), (940, 19862), (1880, 9931)]