221165140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1579751}}^1$

素因数の和:1579767

約数の個数: 24

約数和(自身を含む): 530796672

約数和(自身を除く): 309631532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1579751, 3159502, 6319004, 7898755, 11058257, 15797510, 22116514, 31595020, 44233028, 55291285, 110582570, 221165140]

約数ペア:

[(1, 221165140), (2, 110582570), (4, 55291285), (5, 44233028), (7, 31595020), (10, 22116514), (14, 15797510), (20, 11058257), (28, 7898755), (35, 6319004), (70, 3159502), (140, 1579751)]