221531120

素因数分解:

$2^4\times 5^1\times {\mathrm{2769139}}^1$

素因数の和:2769152

約数の個数: 20

約数和(自身を含む): 515060040

約数和(自身を除く): 293528920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2769139, 5538278, 11076556, 13845695, 22153112, 27691390, 44306224, 55382780, 110765560, 221531120]

約数ペア:

[(1, 221531120), (2, 110765560), (4, 55382780), (5, 44306224), (8, 27691390), (10, 22153112), (16, 13845695), (20, 11076556), (40, 5538278), (80, 2769139)]