249757424

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:478

約数の個数: 80

約数和(自身を含む): 568296960

約数和(自身を除く): 318539536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 139, 244, 263, 278, 427, 488, 526, 556, 854, 973, 976, 1052, 1112, 1708, 1841, 1946, 2104, 2224, 3416, 3682, 3892, 4208, 6832, 7364, 7784, 8479, 14728, 15568, 16043, 16958, 29456, 32086, 33916, 36557, 59353, 64172, 67832, 73114, 112301, 118706, 128344, 135664, 146228, 224602, 237412, 255899, 256688, 292456, 449204, 474824, 511798, 584912, 898408, 949648, 1023596, 1796816, 2047192, 2229977, 4094384, 4459954, 8919908, 15609839, 17839816, 31219678, 35679632, 62439356, 124878712, 249757424]

約数ペア:

[(1, 249757424), (2, 124878712), (4, 62439356), (7, 35679632), (8, 31219678), (14, 17839816), (16, 15609839), (28, 8919908), (56, 4459954), (61, 4094384), (112, 2229977), (122, 2047192), (139, 1796816), (244, 1023596), (263, 949648), (278, 898408), (427, 584912), (488, 511798), (526, 474824), (556, 449204), (854, 292456), (973, 256688), (976, 255899), (1052, 237412), (1112, 224602), (1708, 146228), (1841, 135664), (1946, 128344), (2104, 118706), (2224, 112301), (3416, 73114), (3682, 67832), (3892, 64172), (4208, 59353), (6832, 36557), (7364, 33916), (7784, 32086), (8479, 29456), (14728, 16958), (15568, 16043)]