256397760

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{701}}^1$

素因数の和:851

約数の個数: 168

約数和(自身を含む): 890113536

約数和(自身を除く): 633715776

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 127, 144, 160, 180, 192, 240, 254, 288, 320, 360, 381, 480, 508, 576, 635, 701, 720, 762, 960, 1016, 1143, 1270, 1402, 1440, 1524, 1905, 2032, 2103, 2286, 2540, 2804, 2880, 3048, 3505, 3810, 4064, 4206, 4572, 5080, 5608, 5715, 6096, 6309, 7010, 7620, 8128, 8412, 9144, 10160, 10515, 11216, 11430, 12192, 12618, 14020, 15240, 16824, 18288, 20320, 21030, 22432, 22860, 24384, 25236, 28040, 30480, 31545, 33648, 36576, 40640, 42060, 44864, 45720, 50472, 56080, 60960, 63090, 67296, 73152, 84120, 89027, 91440, 100944, 112160, 121920, 126180, 134592, 168240, 178054, 182880, 201888, 224320, 252360, 267081, 336480, 356108, 365760, 403776, 445135, 504720, 534162, 672960, 712216, 801243, 890270, 1009440, 1068324, 1335405, 1424432, 1602486, 1780540, 2018880, 2136648, 2670810, 2848864, 3204972, 3561080, 4006215, 4273296, 5341620, 5697728, 6409944, 7122160, 8012430, 8546592, 10683240, 12819888, 14244320, 16024860, 17093184, 21366480, 25639776, 28488640, 32049720, 42732960, 51279552, 64099440, 85465920, 128198880, 256397760]

約数ペア:

[(1, 256397760), (2, 128198880), (3, 85465920), (4, 64099440), (5, 51279552), (6, 42732960), (8, 32049720), (9, 28488640), (10, 25639776), (12, 21366480), (15, 17093184), (16, 16024860), (18, 14244320), (20, 12819888), (24, 10683240), (30, 8546592), (32, 8012430), (36, 7122160), (40, 6409944), (45, 5697728), (48, 5341620), (60, 4273296), (64, 4006215), (72, 3561080), (80, 3204972), (90, 2848864), (96, 2670810), (120, 2136648), (127, 2018880), (144, 1780540), (160, 1602486), (180, 1424432), (192, 1335405), (240, 1068324), (254, 1009440), (288, 890270), (320, 801243), (360, 712216), (381, 672960), (480, 534162), (508, 504720), (576, 445135), (635, 403776), (701, 365760), (720, 356108), (762, 336480), (960, 267081), (1016, 252360), (1143, 224320), (1270, 201888), (1402, 182880), (1440, 178054), (1524, 168240), (1905, 134592), (2032, 126180), (2103, 121920), (2286, 112160), (2540, 100944), (2804, 91440), (2880, 89027), (3048, 84120), (3505, 73152), (3810, 67296), (4064, 63090), (4206, 60960), (4572, 56080), (5080, 50472), (5608, 45720), (5715, 44864), (6096, 42060), (6309, 40640), (7010, 36576), (7620, 33648), (8128, 31545), (8412, 30480), (9144, 28040), (10160, 25236), (10515, 24384), (11216, 22860), (11430, 22432), (12192, 21030), (12618, 20320), (14020, 18288), (15240, 16824)]