205867980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{127079}}^1$

素因数の和:127100

約数の個数: 60

約数和(自身を含む): 645820560

約数和(自身を除く): 439952580

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, 127079, 254158, 381237, 508316, 635395, 762474, 1143711, 1270790, 1524948, 1906185, 2287422, 2541580, 3431133, 3812370, 4574844, 5718555, 6862266, 7624740, 10293399, 11437110, 13724532, 17155665, 20586798, 22874220, 34311330, 41173596, 51466995, 68622660, 102933990, 205867980]

約数ペア:

[(1, 205867980), (2, 102933990), (3, 68622660), (4, 51466995), (5, 41173596), (6, 34311330), (9, 22874220), (10, 20586798), (12, 17155665), (15, 13724532), (18, 11437110), (20, 10293399), (27, 7624740), (30, 6862266), (36, 5718555), (45, 4574844), (54, 3812370), (60, 3431133), (81, 2541580), (90, 2287422), (108, 1906185), (135, 1524948), (162, 1270790), (180, 1143711), (270, 762474), (324, 635395), (405, 508316), (540, 381237), (810, 254158), (1620, 127079)]