20905700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{11003}}^1$

素因数の和:11036

約数の個数: 36

約数和(自身を含む): 47757360

約数和(自身を除く): 26851660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 11003, 22006, 44012, 55015, 110030, 209057, 220060, 275075, 418114, 550150, 836228, 1045285, 1100300, 2090570, 4181140, 5226425, 10452850, 20905700]

約数ペア:

[(1, 20905700), (2, 10452850), (4, 5226425), (5, 4181140), (10, 2090570), (19, 1100300), (20, 1045285), (25, 836228), (38, 550150), (50, 418114), (76, 275075), (95, 220060), (100, 209057), (190, 110030), (380, 55015), (475, 44012), (950, 22006), (1900, 11003)]