2615980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{941}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 5538960

約数和(自身を除く): 2922980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 941, 1390, 1882, 2780, 3764, 4705, 9410, 18820, 130799, 261598, 523196, 653995, 1307990, 2615980]

約数ペア:

[(1, 2615980), (2, 1307990), (4, 653995), (5, 523196), (10, 261598), (20, 130799), (139, 18820), (278, 9410), (556, 4705), (695, 3764), (941, 2780), (1390, 1882)]