71210020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{508643}}^1$

素因数の和:508659

約数の個数: 24

約数和(自身を含む): 170904384

約数和(自身を除く): 99694364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 508643, 1017286, 2034572, 2543215, 3560501, 5086430, 7121002, 10172860, 14242004, 17802505, 35605010, 71210020]

約数ペア:

[(1, 71210020), (2, 35605010), (4, 17802505), (5, 14242004), (7, 10172860), (10, 7121002), (14, 5086430), (20, 3560501), (28, 2543215), (35, 2034572), (70, 1017286), (140, 508643)]