221781140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1584151}}^1$

素因数の和:1584167

約数の個数: 24

約数和(自身を含む): 532275072

約数和(自身を除く): 310493932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1584151, 3168302, 6336604, 7920755, 11089057, 15841510, 22178114, 31683020, 44356228, 55445285, 110890570, 221781140]

約数ペア:

[(1, 221781140), (2, 110890570), (4, 55445285), (5, 44356228), (7, 31683020), (10, 22178114), (14, 15841510), (20, 11089057), (28, 7920755), (35, 6336604), (70, 3168302), (140, 1584151)]