140156660

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{20431}}^1$

素因数の和:20461

約数の個数: 48

約数和(自身を含む): 343257600

約数和(自身を除く): 203100940

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, 20431, 40862, 81724, 102155, 143017, 204310, 286034, 408620, 572068, 715085, 1001119, 1430170, 2002238, 2860340, 4004476, 5005595, 7007833, 10011190, 14015666, 20022380, 28031332, 35039165, 70078330, 140156660]

約数ペア:

[(1, 140156660), (2, 70078330), (4, 35039165), (5, 28031332), (7, 20022380), (10, 14015666), (14, 10011190), (20, 7007833), (28, 5005595), (35, 4004476), (49, 2860340), (70, 2002238), (98, 1430170), (140, 1001119), (196, 715085), (245, 572068), (343, 408620), (490, 286034), (686, 204310), (980, 143017), (1372, 102155), (1715, 81724), (3430, 40862), (6860, 20431)]