212995980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{131479}}^1$

素因数の和:131500

約数の個数: 60

約数和(自身を含む): 668181360

約数和(自身を除く): 455185380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 131479, 262958, 394437, 525916, 657395, 788874, 1183311, 1314790, 1577748, 1972185, 2366622, 2629580, 3549933, 3944370, 4733244, 5916555, 7099866, 7888740, 10649799, 11833110, 14199732, 17749665, 21299598, 23666220, 35499330, 42599196, 53248995, 70998660, 106497990, 212995980]

約数ペア:

[(1, 212995980), (2, 106497990), (3, 70998660), (4, 53248995), (5, 42599196), (6, 35499330), (9, 23666220), (10, 21299598), (12, 17749665), (15, 14199732), (18, 11833110), (20, 10649799), (27, 7888740), (30, 7099866), (36, 5916555), (45, 4733244), (54, 3944370), (60, 3549933), (81, 2629580), (90, 2366622), (108, 1972185), (135, 1577748), (162, 1314790), (180, 1183311), (270, 788874), (324, 657395), (405, 525916), (540, 394437), (810, 262958), (1620, 131479)]