18714460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{463}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 41158656

約数和(自身を除く): 22444196

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 463, 470, 860, 926, 940, 1852, 2021, 2315, 4042, 4630, 8084, 9260, 10105, 19909, 20210, 21761, 39818, 40420, 43522, 79636, 87044, 99545, 108805, 199090, 217610, 398180, 435220, 935723, 1871446, 3742892, 4678615, 9357230, 18714460]

約数ペア:

[(1, 18714460), (2, 9357230), (4, 4678615), (5, 3742892), (10, 1871446), (20, 935723), (43, 435220), (47, 398180), (86, 217610), (94, 199090), (172, 108805), (188, 99545), (215, 87044), (235, 79636), (430, 43522), (463, 40420), (470, 39818), (860, 21761), (926, 20210), (940, 19909), (1852, 10105), (2021, 9260), (2315, 8084), (4042, 4630)]