256475520

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{6361}}^1$

素因数の和:6393

約数の個数: 192

約数和(自身を含む): 1012321440

約数和(自身を除く): 755845920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 1008, 1120, 1152, 1260, 1344, 1440, 1680, 1920, 2016, 2240, 2520, 2688, 2880, 3360, 4032, 4480, 5040, 5760, 6361, 6720, 8064, 10080, 12722, 13440, 19083, 20160, 25444, 31805, 38166, 40320, 44527, 50888, 57249, 63610, 76332, 89054, 95415, 101776, 114498, 127220, 133581, 152664, 178108, 190830, 203552, 222635, 228996, 254440, 267162, 286245, 305328, 356216, 381660, 400743, 407104, 445270, 457992, 508880, 534324, 572490, 610656, 667905, 712432, 763320, 801486, 814208, 890540, 915984, 1017760, 1068648, 1144980, 1221312, 1335810, 1424864, 1526640, 1602972, 1781080, 1831968, 2003715, 2035520, 2137296, 2289960, 2442624, 2671620, 2849728, 3053280, 3205944, 3562160, 3663936, 4007430, 4071040, 4274592, 4579920, 5343240, 5699456, 6106560, 6411888, 7124320, 7327872, 8014860, 8549184, 9159840, 10686480, 12213120, 12823776, 14248640, 16029720, 17098368, 18319680, 21372960, 25647552, 28497280, 32059440, 36639360, 42745920, 51295104, 64118880, 85491840, 128237760, 256475520]

約数ペア:

[(1, 256475520), (2, 128237760), (3, 85491840), (4, 64118880), (5, 51295104), (6, 42745920), (7, 36639360), (8, 32059440), (9, 28497280), (10, 25647552), (12, 21372960), (14, 18319680), (15, 17098368), (16, 16029720), (18, 14248640), (20, 12823776), (21, 12213120), (24, 10686480), (28, 9159840), (30, 8549184), (32, 8014860), (35, 7327872), (36, 7124320), (40, 6411888), (42, 6106560), (45, 5699456), (48, 5343240), (56, 4579920), (60, 4274592), (63, 4071040), (64, 4007430), (70, 3663936), (72, 3562160), (80, 3205944), (84, 3053280), (90, 2849728), (96, 2671620), (105, 2442624), (112, 2289960), (120, 2137296), (126, 2035520), (128, 2003715), (140, 1831968), (144, 1781080), (160, 1602972), (168, 1526640), (180, 1424864), (192, 1335810), (210, 1221312), (224, 1144980), (240, 1068648), (252, 1017760), (280, 915984), (288, 890540), (315, 814208), (320, 801486), (336, 763320), (360, 712432), (384, 667905), (420, 610656), (448, 572490), (480, 534324), (504, 508880), (560, 457992), (576, 445270), (630, 407104), (640, 400743), (672, 381660), (720, 356216), (840, 305328), (896, 286245), (960, 267162), (1008, 254440), (1120, 228996), (1152, 222635), (1260, 203552), (1344, 190830), (1440, 178108), (1680, 152664), (1920, 133581), (2016, 127220), (2240, 114498), (2520, 101776), (2688, 95415), (2880, 89054), (3360, 76332), (4032, 63610), (4480, 57249), (5040, 50888), (5760, 44527), (6361, 40320), (6720, 38166), (8064, 31805), (10080, 25444), (12722, 20160), (13440, 19083)]