201720460

素因数分解:

$2^2\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{4733}}^1$

素因数の和:6873

約数の個数: 24

約数和(自身を含む): 423901296

約数和(自身を除く): 222180836

約数列:

[1, 2, 4, 5, 10, 20, 2131, 4262, 4733, 8524, 9466, 10655, 18932, 21310, 23665, 42620, 47330, 94660, 10086023, 20172046, 40344092, 50430115, 100860230, 201720460]

約数ペア:

[(1, 201720460), (2, 100860230), (4, 50430115), (5, 40344092), (10, 20172046), (20, 10086023), (2131, 94660), (4262, 47330), (4733, 42620), (8524, 23665), (9466, 21310), (10655, 18932)]