222784180

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{7481}}^1$

素因数の和:8979

約数の個数: 24

約数和(自身を含む): 468223560

約数和(自身を除く): 245439380

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 5956, 7445, 7481, 14890, 14962, 29780, 29924, 37405, 74810, 149620, 11139209, 22278418, 44556836, 55696045, 111392090, 222784180]

約数ペア:

[(1, 222784180), (2, 111392090), (4, 55696045), (5, 44556836), (10, 22278418), (20, 11139209), (1489, 149620), (2978, 74810), (5956, 37405), (7445, 29924), (7481, 29780), (14890, 14962)]