30235916

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{20939}}^1$

素因数の和:20981

約数の個数: 18

約数和(自身を含む): 55846980

約数和(自身を除く): 25611064

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 20939, 41878, 83756, 397841, 795682, 1591364, 7558979, 15117958, 30235916]

約数ペア:

[(1, 30235916), (2, 15117958), (4, 7558979), (19, 1591364), (38, 795682), (76, 397841), (361, 83756), (722, 41878), (1444, 20939)]