256475760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{479}}^1$

素因数の和:615

約数の個数: 160

約数和(自身を含む): 839946240

約数和(自身を除く): 583470480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 97, 115, 120, 138, 184, 194, 230, 240, 276, 291, 345, 368, 388, 460, 479, 485, 552, 582, 690, 776, 920, 958, 970, 1104, 1164, 1380, 1437, 1455, 1552, 1840, 1916, 1940, 2231, 2328, 2395, 2760, 2874, 2910, 3832, 3880, 4462, 4656, 4790, 5520, 5748, 5820, 6693, 7185, 7664, 7760, 8924, 9580, 11017, 11155, 11496, 11640, 13386, 14370, 17848, 19160, 22034, 22310, 22992, 23280, 26772, 28740, 33051, 33465, 35696, 38320, 44068, 44620, 46463, 53544, 55085, 57480, 66102, 66930, 88136, 89240, 92926, 107088, 110170, 114960, 132204, 133860, 139389, 165255, 176272, 178480, 185852, 220340, 232315, 264408, 267720, 278778, 330510, 371704, 440680, 464630, 528816, 535440, 557556, 661020, 696945, 743408, 881360, 929260, 1068649, 1115112, 1322040, 1393890, 1858520, 2137298, 2230224, 2644080, 2787780, 3205947, 3717040, 4274596, 5343245, 5575560, 6411894, 8549192, 10686490, 11151120, 12823788, 16029735, 17098384, 21372980, 25647576, 32059470, 42745960, 51295152, 64118940, 85491920, 128237880, 256475760]

約数ペア:

[(1, 256475760), (2, 128237880), (3, 85491920), (4, 64118940), (5, 51295152), (6, 42745960), (8, 32059470), (10, 25647576), (12, 21372980), (15, 17098384), (16, 16029735), (20, 12823788), (23, 11151120), (24, 10686490), (30, 8549192), (40, 6411894), (46, 5575560), (48, 5343245), (60, 4274596), (69, 3717040), (80, 3205947), (92, 2787780), (97, 2644080), (115, 2230224), (120, 2137298), (138, 1858520), (184, 1393890), (194, 1322040), (230, 1115112), (240, 1068649), (276, 929260), (291, 881360), (345, 743408), (368, 696945), (388, 661020), (460, 557556), (479, 535440), (485, 528816), (552, 464630), (582, 440680), (690, 371704), (776, 330510), (920, 278778), (958, 267720), (970, 264408), (1104, 232315), (1164, 220340), (1380, 185852), (1437, 178480), (1455, 176272), (1552, 165255), (1840, 139389), (1916, 133860), (1940, 132204), (2231, 114960), (2328, 110170), (2395, 107088), (2760, 92926), (2874, 89240), (2910, 88136), (3832, 66930), (3880, 66102), (4462, 57480), (4656, 55085), (4790, 53544), (5520, 46463), (5748, 44620), (5820, 44068), (6693, 38320), (7185, 35696), (7664, 33465), (7760, 33051), (8924, 28740), (9580, 26772), (11017, 23280), (11155, 22992), (11496, 22310), (11640, 22034), (13386, 19160), (14370, 17848)]