221405857120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{28240543}}^1$

素因数の和:28240572

約数の個数: 72

約数和(自身を含む): 608470761024

約数和(自身を除く): 387064903904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 28240543, 56481086, 112962172, 141202715, 197683801, 225924344, 282405430, 395367602, 451848688, 564810860, 790735204, 903697376, 988419005, 1129621720, 1383786607, 1581470408, 1976838010, 2259243440, 2767573214, 3162940816, 3953676020, 4518486880, 5535146428, 6325881632, 6918933035, 7907352040, 11070292856, 13837866070, 15814704080, 22140585712, 27675732140, 31629408160, 44281171424, 55351464280, 110702928560, 221405857120]

約数ペア:

[(1, 221405857120), (2, 110702928560), (4, 55351464280), (5, 44281171424), (7, 31629408160), (8, 27675732140), (10, 22140585712), (14, 15814704080), (16, 13837866070), (20, 11070292856), (28, 7907352040), (32, 6918933035), (35, 6325881632), (40, 5535146428), (49, 4518486880), (56, 3953676020), (70, 3162940816), (80, 2767573214), (98, 2259243440), (112, 1976838010), (140, 1581470408), (160, 1383786607), (196, 1129621720), (224, 988419005), (245, 903697376), (280, 790735204), (392, 564810860), (490, 451848688), (560, 395367602), (784, 282405430), (980, 225924344), (1120, 197683801), (1568, 141202715), (1960, 112962172), (3920, 56481086), (7840, 28240543)]