20228720

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{863}}^1$

素因数の和:1169

約数の個数: 40

約数和(自身を含む): 47246976

約数和(自身を除く): 27018256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 863, 1172, 1465, 1726, 2344, 2930, 3452, 4315, 4688, 5860, 6904, 8630, 11720, 13808, 17260, 23440, 34520, 69040, 252859, 505718, 1011436, 1264295, 2022872, 2528590, 4045744, 5057180, 10114360, 20228720]

約数ペア:

[(1, 20228720), (2, 10114360), (4, 5057180), (5, 4045744), (8, 2528590), (10, 2022872), (16, 1264295), (20, 1011436), (40, 505718), (80, 252859), (293, 69040), (586, 34520), (863, 23440), (1172, 17260), (1465, 13808), (1726, 11720), (2344, 8630), (2930, 6904), (3452, 5860), (4315, 4688)]