28803980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33493}}^1$

素因数の和:33545

約数の個数: 24

約数和(自身を含む): 61896912

約数和(自身を除く): 33092932

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 33493, 66986, 133972, 167465, 334930, 669860, 1440199, 2880398, 5760796, 7200995, 14401990, 28803980]

約数ペア:

[(1, 28803980), (2, 14401990), (4, 7200995), (5, 5760796), (10, 2880398), (20, 1440199), (43, 669860), (86, 334930), (172, 167465), (215, 133972), (430, 66986), (860, 33493)]