20124560

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2351}}^1$

素因数の和:2471

約数の個数: 40

約数和(自身を含む): 47246976

約数和(自身を除く): 27122416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 2351, 4280, 4702, 8560, 9404, 11755, 18808, 23510, 37616, 47020, 94040, 188080, 251557, 503114, 1006228, 1257785, 2012456, 2515570, 4024912, 5031140, 10062280, 20124560]

約数ペア:

[(1, 20124560), (2, 10062280), (4, 5031140), (5, 4024912), (8, 2515570), (10, 2012456), (16, 1257785), (20, 1006228), (40, 503114), (80, 251557), (107, 188080), (214, 94040), (428, 47020), (535, 37616), (856, 23510), (1070, 18808), (1712, 11755), (2140, 9404), (2351, 8560), (4280, 4702)]