256939760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{787}}^1$

素因数の和:871

約数の個数: 160

約数和(自身を含む): 759808512

約数和(自身を除く): 502868752

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 53, 55, 56, 70, 77, 80, 88, 106, 110, 112, 140, 154, 176, 212, 220, 265, 280, 308, 371, 385, 424, 440, 530, 560, 583, 616, 742, 770, 787, 848, 880, 1060, 1166, 1232, 1484, 1540, 1574, 1855, 2120, 2332, 2915, 2968, 3080, 3148, 3710, 3935, 4081, 4240, 4664, 5509, 5830, 5936, 6160, 6296, 7420, 7870, 8162, 8657, 9328, 11018, 11660, 12592, 14840, 15740, 16324, 17314, 20405, 22036, 23320, 27545, 29680, 31480, 32648, 34628, 40810, 41711, 43285, 44072, 46640, 55090, 60599, 62960, 65296, 69256, 81620, 83422, 86570, 88144, 110180, 121198, 138512, 163240, 166844, 173140, 208555, 220360, 242396, 291977, 302995, 326480, 333688, 346280, 417110, 440720, 458821, 484792, 583954, 605990, 667376, 692560, 834220, 917642, 969584, 1167908, 1211980, 1459885, 1668440, 1835284, 2294105, 2335816, 2423960, 2919770, 3211747, 3336880, 3670568, 4588210, 4671632, 4847920, 5839540, 6423494, 7341136, 9176420, 11679080, 12846988, 16058735, 18352840, 23358160, 25693976, 32117470, 36705680, 51387952, 64234940, 128469880, 256939760]

約数ペア:

[(1, 256939760), (2, 128469880), (4, 64234940), (5, 51387952), (7, 36705680), (8, 32117470), (10, 25693976), (11, 23358160), (14, 18352840), (16, 16058735), (20, 12846988), (22, 11679080), (28, 9176420), (35, 7341136), (40, 6423494), (44, 5839540), (53, 4847920), (55, 4671632), (56, 4588210), (70, 3670568), (77, 3336880), (80, 3211747), (88, 2919770), (106, 2423960), (110, 2335816), (112, 2294105), (140, 1835284), (154, 1668440), (176, 1459885), (212, 1211980), (220, 1167908), (265, 969584), (280, 917642), (308, 834220), (371, 692560), (385, 667376), (424, 605990), (440, 583954), (530, 484792), (560, 458821), (583, 440720), (616, 417110), (742, 346280), (770, 333688), (787, 326480), (848, 302995), (880, 291977), (1060, 242396), (1166, 220360), (1232, 208555), (1484, 173140), (1540, 166844), (1574, 163240), (1855, 138512), (2120, 121198), (2332, 110180), (2915, 88144), (2968, 86570), (3080, 83422), (3148, 81620), (3710, 69256), (3935, 65296), (4081, 62960), (4240, 60599), (4664, 55090), (5509, 46640), (5830, 44072), (5936, 43285), (6160, 41711), (6296, 40810), (7420, 34628), (7870, 32648), (8162, 31480), (8657, 29680), (9328, 27545), (11018, 23320), (11660, 22036), (12592, 20405), (14840, 17314), (15740, 16324)]