205871220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{127081}}^1$

素因数の和:127102

約数の個数: 60

約数和(自身を含む): 645830724

約数和(自身を除く): 439959504

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, 127081, 254162, 381243, 508324, 635405, 762486, 1143729, 1270810, 1524972, 1906215, 2287458, 2541620, 3431187, 3812430, 4574916, 5718645, 6862374, 7624860, 10293561, 11437290, 13724748, 17155935, 20587122, 22874580, 34311870, 41174244, 51467805, 68623740, 102935610, 205871220]

約数ペア:

[(1, 205871220), (2, 102935610), (3, 68623740), (4, 51467805), (5, 41174244), (6, 34311870), (9, 22874580), (10, 20587122), (12, 17155935), (15, 13724748), (18, 11437290), (20, 10293561), (27, 7624860), (30, 6862374), (36, 5718645), (45, 4574916), (54, 3812430), (60, 3431187), (81, 2541620), (90, 2287458), (108, 1906215), (135, 1524972), (162, 1270810), (180, 1143729), (270, 762486), (324, 635405), (405, 508324), (540, 381243), (810, 254162), (1620, 127081)]