285417279

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2477}}^1$

素因数の和:2580

約数の個数: 48

約数和(自身を含む): 494807040

約数和(自身を除く): 209389761

約数列:

[1, 3, 7, 9, 21, 31, 59, 63, 93, 177, 217, 279, 413, 531, 651, 1239, 1829, 1953, 2477, 3717, 5487, 7431, 12803, 16461, 17339, 22293, 38409, 52017, 76787, 115227, 146143, 156051, 230361, 438429, 537509, 691083, 1023001, 1315287, 1612527, 3069003, 4530433, 4837581, 9207009, 13591299, 31713031, 40773897, 95139093, 285417279]

約数ペア:

[(1, 285417279), (3, 95139093), (7, 40773897), (9, 31713031), (21, 13591299), (31, 9207009), (59, 4837581), (63, 4530433), (93, 3069003), (177, 1612527), (217, 1315287), (279, 1023001), (413, 691083), (531, 537509), (651, 438429), (1239, 230361), (1829, 156051), (1953, 146143), (2477, 115227), (3717, 76787), (5487, 52017), (7431, 38409), (12803, 22293), (16461, 17339)]