278375877

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 483065856

約数和(自身を除く): 204689979

約数列:

[1, 3, 9, 13, 23, 31, 39, 47, 69, 71, 93, 117, 141, 207, 213, 279, 299, 403, 423, 611, 639, 713, 897, 923, 1081, 1209, 1457, 1633, 1833, 2139, 2201, 2691, 2769, 3243, 3337, 3627, 4371, 4899, 5499, 6417, 6603, 8307, 9269, 9729, 10011, 13113, 14053, 14697, 18941, 19809, 21229, 27807, 28613, 30033, 33511, 42159, 43381, 50623, 56823, 63687, 76751, 83421, 85839, 100533, 103447, 126477, 130143, 151869, 170469, 191061, 230253, 257517, 301599, 310341, 390429, 435643, 455607, 658099, 690759, 931023, 997763, 1306929, 1344811, 1974297, 2379281, 2993289, 3920787, 4034433, 5922891, 7137843, 8979867, 12103299, 21413529, 30930653, 92791959, 278375877]

約数ペア:

[(1, 278375877), (3, 92791959), (9, 30930653), (13, 21413529), (23, 12103299), (31, 8979867), (39, 7137843), (47, 5922891), (69, 4034433), (71, 3920787), (93, 2993289), (117, 2379281), (141, 1974297), (207, 1344811), (213, 1306929), (279, 997763), (299, 931023), (403, 690759), (423, 658099), (611, 455607), (639, 435643), (713, 390429), (897, 310341), (923, 301599), (1081, 257517), (1209, 230253), (1457, 191061), (1633, 170469), (1833, 151869), (2139, 130143), (2201, 126477), (2691, 103447), (2769, 100533), (3243, 85839), (3337, 83421), (3627, 76751), (4371, 63687), (4899, 56823), (5499, 50623), (6417, 43381), (6603, 42159), (8307, 33511), (9269, 30033), (9729, 28613), (10011, 27807), (13113, 21229), (14053, 19809), (14697, 18941)]