20469770

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1550

約数の個数: 32

約数和(自身を含む): 39104640

約数和(自身を除く): 18634870

約数列:

[1, 2, 5, 10, 23, 46, 61, 115, 122, 230, 305, 610, 1403, 1459, 2806, 2918, 7015, 7295, 14030, 14590, 33557, 67114, 88999, 167785, 177998, 335570, 444995, 889990, 2046977, 4093954, 10234885, 20469770]

約数ペア:

[(1, 20469770), (2, 10234885), (5, 4093954), (10, 2046977), (23, 889990), (46, 444995), (61, 335570), (115, 177998), (122, 167785), (230, 88999), (305, 67114), (610, 33557), (1403, 14590), (1459, 14030), (2806, 7295), (2918, 7015)]