30021460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{214439}}^1$

素因数の和:214455

約数の個数: 24

約数和(自身を含む): 72051840

約数和(自身を除く): 42030380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 214439, 428878, 857756, 1072195, 1501073, 2144390, 3002146, 4288780, 6004292, 7505365, 15010730, 30021460]

約数ペア:

[(1, 30021460), (2, 15010730), (4, 7505365), (5, 6004292), (7, 4288780), (10, 3002146), (14, 2144390), (20, 1501073), (28, 1072195), (35, 857756), (70, 428878), (140, 214439)]