256626720

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{3637}}^1$

素因数の和:3672

約数の個数: 216

約数和(自身を含む): 1018996524

約数和(自身を除く): 762369804

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, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 560, 588, 630, 672, 720, 735, 784, 840, 882, 980, 1008, 1120, 1176, 1260, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2352, 2520, 2940, 3360, 3528, 3637, 3920, 4410, 4704, 5040, 5880, 7056, 7274, 7840, 8820, 10080, 10911, 11760, 14112, 14548, 17640, 18185, 21822, 23520, 25459, 29096, 32733, 35280, 36370, 43644, 50918, 54555, 58192, 65466, 70560, 72740, 76377, 87288, 101836, 109110, 116384, 127295, 130932, 145480, 152754, 163665, 174576, 178213, 203672, 218220, 229131, 254590, 261864, 290960, 305508, 327330, 349152, 356426, 381885, 407344, 436440, 458262, 509180, 523728, 534639, 581920, 611016, 654660, 712852, 763770, 814688, 872880, 891065, 916524, 1018360, 1047456, 1069278, 1145655, 1222032, 1309320, 1425704, 1527540, 1603917, 1745760, 1782130, 1833048, 2036720, 2138556, 2291310, 2444064, 2618640, 2673195, 2851408, 3055080, 3207834, 3564260, 3666096, 4073440, 4277112, 4582620, 5237280, 5346390, 5702816, 6110160, 6415668, 7128520, 7332192, 8019585, 8554224, 9165240, 10692780, 12220320, 12831336, 14257040, 16039170, 17108448, 18330480, 21385560, 25662672, 28514080, 32078340, 36660960, 42771120, 51325344, 64156680, 85542240, 128313360, 256626720]

約数ペア:

[(1, 256626720), (2, 128313360), (3, 85542240), (4, 64156680), (5, 51325344), (6, 42771120), (7, 36660960), (8, 32078340), (9, 28514080), (10, 25662672), (12, 21385560), (14, 18330480), (15, 17108448), (16, 16039170), (18, 14257040), (20, 12831336), (21, 12220320), (24, 10692780), (28, 9165240), (30, 8554224), (32, 8019585), (35, 7332192), (36, 7128520), (40, 6415668), (42, 6110160), (45, 5702816), (48, 5346390), (49, 5237280), (56, 4582620), (60, 4277112), (63, 4073440), (70, 3666096), (72, 3564260), (80, 3207834), (84, 3055080), (90, 2851408), (96, 2673195), (98, 2618640), (105, 2444064), (112, 2291310), (120, 2138556), (126, 2036720), (140, 1833048), (144, 1782130), (147, 1745760), (160, 1603917), (168, 1527540), (180, 1425704), (196, 1309320), (210, 1222032), (224, 1145655), (240, 1069278), (245, 1047456), (252, 1018360), (280, 916524), (288, 891065), (294, 872880), (315, 814688), (336, 763770), (360, 712852), (392, 654660), (420, 611016), (441, 581920), (480, 534639), (490, 523728), (504, 509180), (560, 458262), (588, 436440), (630, 407344), (672, 381885), (720, 356426), (735, 349152), (784, 327330), (840, 305508), (882, 290960), (980, 261864), (1008, 254590), (1120, 229131), (1176, 218220), (1260, 203672), (1440, 178213), (1470, 174576), (1568, 163665), (1680, 152754), (1764, 145480), (1960, 130932), (2016, 127295), (2205, 116384), (2352, 109110), (2520, 101836), (2940, 87288), (3360, 76377), (3528, 72740), (3637, 70560), (3920, 65466), (4410, 58192), (4704, 54555), (5040, 50918), (5880, 43644), (7056, 36370), (7274, 35280), (7840, 32733), (8820, 29096), (10080, 25459), (10911, 23520), (11760, 21822), (14112, 18185), (14548, 17640)]