490519980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1237}}^1\times {\mathrm{2203}}^1$

素因数の和:3455

約数の個数: 72

約数和(自身を含む): 1489789392

約数和(自身を除く): 999269412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1237, 2203, 2474, 3711, 4406, 4948, 6185, 6609, 7422, 8812, 11015, 11133, 12370, 13218, 14844, 18555, 19827, 22030, 22266, 24740, 26436, 33045, 37110, 39654, 44060, 44532, 55665, 66090, 74220, 79308, 99135, 111330, 132180, 198270, 222660, 396540, 2725111, 5450222, 8175333, 10900444, 13625555, 16350666, 24525999, 27251110, 32701332, 40876665, 49051998, 54502220, 81753330, 98103996, 122629995, 163506660, 245259990, 490519980]

約数ペア:

[(1, 490519980), (2, 245259990), (3, 163506660), (4, 122629995), (5, 98103996), (6, 81753330), (9, 54502220), (10, 49051998), (12, 40876665), (15, 32701332), (18, 27251110), (20, 24525999), (30, 16350666), (36, 13625555), (45, 10900444), (60, 8175333), (90, 5450222), (180, 2725111), (1237, 396540), (2203, 222660), (2474, 198270), (3711, 132180), (4406, 111330), (4948, 99135), (6185, 79308), (6609, 74220), (7422, 66090), (8812, 55665), (11015, 44532), (11133, 44060), (12370, 39654), (13218, 37110), (14844, 33045), (18555, 26436), (19827, 24740), (22030, 22266)]