2978780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{21277}}^1$

素因数の和:21293

約数の個数: 24

約数和(自身を含む): 7149408

約数和(自身を除く): 4170628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 21277, 42554, 85108, 106385, 148939, 212770, 297878, 425540, 595756, 744695, 1489390, 2978780]

約数ペア:

[(1, 2978780), (2, 1489390), (4, 744695), (5, 595756), (7, 425540), (10, 297878), (14, 212770), (20, 148939), (28, 106385), (35, 85108), (70, 42554), (140, 21277)]