1440812660

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{210031}}^1$

素因数の和:210061

約数の個数: 48

約数和(自身を含む): 3528537600

約数和(自身を除く): 2087724940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 210031, 420062, 840124, 1050155, 1470217, 2100310, 2940434, 4200620, 5880868, 7351085, 10291519, 14702170, 20583038, 29404340, 41166076, 51457595, 72040633, 102915190, 144081266, 205830380, 288162532, 360203165, 720406330, 1440812660]

約数ペア:

[(1, 1440812660), (2, 720406330), (4, 360203165), (5, 288162532), (7, 205830380), (10, 144081266), (14, 102915190), (20, 72040633), (28, 51457595), (35, 41166076), (49, 29404340), (70, 20583038), (98, 14702170), (140, 10291519), (196, 7351085), (245, 5880868), (343, 4200620), (490, 2940434), (686, 2100310), (980, 1470217), (1372, 1050155), (1715, 840124), (3430, 420062), (6860, 210031)]