311930580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399911}}^1$

素因数の和:399936

約数の個数: 48

約数和(自身を含む): 940593024

約数和(自身を除く): 628662444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 399911, 799822, 1199733, 1599644, 1999555, 2399466, 3999110, 4798932, 5198843, 5998665, 7998220, 10397686, 11997330, 15596529, 20795372, 23994660, 25994215, 31193058, 51988430, 62386116, 77982645, 103976860, 155965290, 311930580]

約数ペア:

[(1, 311930580), (2, 155965290), (3, 103976860), (4, 77982645), (5, 62386116), (6, 51988430), (10, 31193058), (12, 25994215), (13, 23994660), (15, 20795372), (20, 15596529), (26, 11997330), (30, 10397686), (39, 7998220), (52, 5998665), (60, 5198843), (65, 4798932), (78, 3999110), (130, 2399466), (156, 1999555), (195, 1599644), (260, 1199733), (390, 799822), (780, 399911)]