86840740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{12659}}^1$

素因数の和:12689

約数の個数: 48

約数和(自身を含む): 212688000

約数和(自身を除く): 125847260

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, 12659, 25318, 50636, 63295, 88613, 126590, 177226, 253180, 354452, 443065, 620291, 886130, 1240582, 1772260, 2481164, 3101455, 4342037, 6202910, 8684074, 12405820, 17368148, 21710185, 43420370, 86840740]

約数ペア:

[(1, 86840740), (2, 43420370), (4, 21710185), (5, 17368148), (7, 12405820), (10, 8684074), (14, 6202910), (20, 4342037), (28, 3101455), (35, 2481164), (49, 1772260), (70, 1240582), (98, 886130), (140, 620291), (196, 443065), (245, 354452), (343, 253180), (490, 177226), (686, 126590), (980, 88613), (1372, 63295), (1715, 50636), (3430, 25318), (6860, 12659)]