256744320

素因数分解:

$2^7\times 3^1\times 5^1\times 7^2\times {\mathrm{2729}}^1$

素因数の和:2765

約数の個数: 192

約数和(自身を含む): 952333200

約数和(自身を除く): 695588880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 735, 784, 840, 896, 960, 980, 1120, 1176, 1344, 1470, 1568, 1680, 1920, 1960, 2240, 2352, 2688, 2729, 2940, 3136, 3360, 3920, 4480, 4704, 5458, 5880, 6272, 6720, 7840, 8187, 9408, 10916, 11760, 13440, 13645, 15680, 16374, 18816, 19103, 21832, 23520, 27290, 31360, 32748, 38206, 40935, 43664, 47040, 54580, 57309, 65496, 76412, 81870, 87328, 94080, 95515, 109160, 114618, 130992, 133721, 152824, 163740, 174656, 191030, 218320, 229236, 261984, 267442, 286545, 305648, 327480, 349312, 382060, 401163, 436640, 458472, 523968, 534884, 573090, 611296, 654960, 668605, 764120, 802326, 873280, 916944, 1047936, 1069768, 1146180, 1222592, 1309920, 1337210, 1528240, 1604652, 1746560, 1833888, 2005815, 2139536, 2292360, 2445184, 2619840, 2674420, 3056480, 3209304, 3667776, 4011630, 4279072, 4584720, 5239680, 5348840, 6112960, 6418608, 7335552, 8023260, 8558144, 9169440, 10697680, 12225920, 12837216, 16046520, 17116288, 18338880, 21395360, 25674432, 32093040, 36677760, 42790720, 51348864, 64186080, 85581440, 128372160, 256744320]

約数ペア:

[(1, 256744320), (2, 128372160), (3, 85581440), (4, 64186080), (5, 51348864), (6, 42790720), (7, 36677760), (8, 32093040), (10, 25674432), (12, 21395360), (14, 18338880), (15, 17116288), (16, 16046520), (20, 12837216), (21, 12225920), (24, 10697680), (28, 9169440), (30, 8558144), (32, 8023260), (35, 7335552), (40, 6418608), (42, 6112960), (48, 5348840), (49, 5239680), (56, 4584720), (60, 4279072), (64, 4011630), (70, 3667776), (80, 3209304), (84, 3056480), (96, 2674420), (98, 2619840), (105, 2445184), (112, 2292360), (120, 2139536), (128, 2005815), (140, 1833888), (147, 1746560), (160, 1604652), (168, 1528240), (192, 1337210), (196, 1309920), (210, 1222592), (224, 1146180), (240, 1069768), (245, 1047936), (280, 916944), (294, 873280), (320, 802326), (336, 764120), (384, 668605), (392, 654960), (420, 611296), (448, 573090), (480, 534884), (490, 523968), (560, 458472), (588, 436640), (640, 401163), (672, 382060), (735, 349312), (784, 327480), (840, 305648), (896, 286545), (960, 267442), (980, 261984), (1120, 229236), (1176, 218320), (1344, 191030), (1470, 174656), (1568, 163740), (1680, 152824), (1920, 133721), (1960, 130992), (2240, 114618), (2352, 109160), (2688, 95515), (2729, 94080), (2940, 87328), (3136, 81870), (3360, 76412), (3920, 65496), (4480, 57309), (4704, 54580), (5458, 47040), (5880, 43664), (6272, 40935), (6720, 38206), (7840, 32748), (8187, 31360), (9408, 27290), (10916, 23520), (11760, 21832), (13440, 19103), (13645, 18816), (15680, 16374)]