26740280

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1949}}^1$

素因数の和:1981

約数の個数: 64

約数和(自身を含む): 70200000

約数和(自身を除く): 43459720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1949, 1960, 2744, 3430, 3898, 6860, 7796, 9745, 13643, 13720, 15592, 19490, 27286, 38980, 54572, 68215, 77960, 95501, 109144, 136430, 191002, 272860, 382004, 477505, 545720, 668507, 764008, 955010, 1337014, 1910020, 2674028, 3342535, 3820040, 5348056, 6685070, 13370140, 26740280]

約数ペア:

[(1, 26740280), (2, 13370140), (4, 6685070), (5, 5348056), (7, 3820040), (8, 3342535), (10, 2674028), (14, 1910020), (20, 1337014), (28, 955010), (35, 764008), (40, 668507), (49, 545720), (56, 477505), (70, 382004), (98, 272860), (140, 191002), (196, 136430), (245, 109144), (280, 95501), (343, 77960), (392, 68215), (490, 54572), (686, 38980), (980, 27286), (1372, 19490), (1715, 15592), (1949, 13720), (1960, 13643), (2744, 9745), (3430, 7796), (3898, 6860)]