256187520

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:667

約数の個数: 192

約数和(自身を含む): 897436800

約数和(自身を除く): 641249280

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, 79, 80, 90, 96, 120, 128, 144, 158, 160, 180, 192, 237, 240, 288, 316, 320, 360, 384, 395, 474, 480, 563, 576, 632, 640, 711, 720, 790, 948, 960, 1126, 1152, 1185, 1264, 1422, 1440, 1580, 1689, 1896, 1920, 2252, 2370, 2528, 2815, 2844, 2880, 3160, 3378, 3555, 3792, 4504, 4740, 5056, 5067, 5630, 5688, 5760, 6320, 6756, 7110, 7584, 8445, 9008, 9480, 10112, 10134, 11260, 11376, 12640, 13512, 14220, 15168, 16890, 18016, 18960, 20268, 22520, 22752, 25280, 25335, 27024, 28440, 30336, 33780, 36032, 37920, 40536, 44477, 45040, 45504, 50560, 50670, 54048, 56880, 67560, 72064, 75840, 81072, 88954, 90080, 91008, 101340, 108096, 113760, 133431, 135120, 151680, 162144, 177908, 180160, 202680, 216192, 222385, 227520, 266862, 270240, 324288, 355816, 360320, 400293, 405360, 444770, 455040, 533724, 540480, 648576, 667155, 711632, 800586, 810720, 889540, 1067448, 1080960, 1334310, 1423264, 1601172, 1621440, 1779080, 2001465, 2134896, 2668620, 2846528, 3202344, 3242880, 3558160, 4002930, 4269792, 5337240, 5693056, 6404688, 7116320, 8005860, 8539584, 10674480, 12809376, 14232640, 16011720, 17079168, 21348960, 25618752, 28465280, 32023440, 42697920, 51237504, 64046880, 85395840, 128093760, 256187520]

約数ペア:

[(1, 256187520), (2, 128093760), (3, 85395840), (4, 64046880), (5, 51237504), (6, 42697920), (8, 32023440), (9, 28465280), (10, 25618752), (12, 21348960), (15, 17079168), (16, 16011720), (18, 14232640), (20, 12809376), (24, 10674480), (30, 8539584), (32, 8005860), (36, 7116320), (40, 6404688), (45, 5693056), (48, 5337240), (60, 4269792), (64, 4002930), (72, 3558160), (79, 3242880), (80, 3202344), (90, 2846528), (96, 2668620), (120, 2134896), (128, 2001465), (144, 1779080), (158, 1621440), (160, 1601172), (180, 1423264), (192, 1334310), (237, 1080960), (240, 1067448), (288, 889540), (316, 810720), (320, 800586), (360, 711632), (384, 667155), (395, 648576), (474, 540480), (480, 533724), (563, 455040), (576, 444770), (632, 405360), (640, 400293), (711, 360320), (720, 355816), (790, 324288), (948, 270240), (960, 266862), (1126, 227520), (1152, 222385), (1185, 216192), (1264, 202680), (1422, 180160), (1440, 177908), (1580, 162144), (1689, 151680), (1896, 135120), (1920, 133431), (2252, 113760), (2370, 108096), (2528, 101340), (2815, 91008), (2844, 90080), (2880, 88954), (3160, 81072), (3378, 75840), (3555, 72064), (3792, 67560), (4504, 56880), (4740, 54048), (5056, 50670), (5067, 50560), (5630, 45504), (5688, 45040), (5760, 44477), (6320, 40536), (6756, 37920), (7110, 36032), (7584, 33780), (8445, 30336), (9008, 28440), (9480, 27024), (10112, 25335), (10134, 25280), (11260, 22752), (11376, 22520), (12640, 20268), (13512, 18960), (14220, 18016), (15168, 16890)]