261908640

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{2887}}^1$

素因数の和:2921

約数の個数: 240

約数和(自身を含む): 1056730752

約数和(自身を除く): 794822112

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1890, 2016, 2160, 2268, 2520, 2592, 2835, 2887, 3024, 3240, 3360, 3780, 4320, 4536, 5040, 5670, 5774, 6048, 6480, 7560, 8661, 9072, 10080, 11340, 11548, 12960, 14435, 15120, 17322, 18144, 20209, 22680, 23096, 25983, 28870, 30240, 34644, 40418, 43305, 45360, 46192, 51966, 57740, 60627, 69288, 77949, 80836, 86610, 90720, 92384, 101045, 103932, 115480, 121254, 129915, 138576, 155898, 161672, 173220, 181881, 202090, 207864, 230960, 233847, 242508, 259830, 277152, 303135, 311796, 323344, 346440, 363762, 389745, 404180, 415728, 461920, 467694, 485016, 519660, 545643, 606270, 623592, 646688, 692880, 727524, 779490, 808360, 831456, 909405, 935388, 970032, 1039320, 1091286, 1169235, 1212540, 1247184, 1385760, 1455048, 1558980, 1616720, 1636929, 1818810, 1870776, 1940064, 2078640, 2182572, 2338470, 2425080, 2494368, 2728215, 2910096, 3117960, 3233440, 3273858, 3637620, 3741552, 4157280, 4365144, 4676940, 4850160, 5456430, 5820192, 6235920, 6547716, 7275240, 7483104, 8184645, 8730288, 9353880, 9700320, 10912860, 12471840, 13095432, 14550480, 16369290, 17460576, 18707760, 21825720, 26190864, 29100960, 32738580, 37415520, 43651440, 52381728, 65477160, 87302880, 130954320, 261908640]

約数ペア:

[(1, 261908640), (2, 130954320), (3, 87302880), (4, 65477160), (5, 52381728), (6, 43651440), (7, 37415520), (8, 32738580), (9, 29100960), (10, 26190864), (12, 21825720), (14, 18707760), (15, 17460576), (16, 16369290), (18, 14550480), (20, 13095432), (21, 12471840), (24, 10912860), (27, 9700320), (28, 9353880), (30, 8730288), (32, 8184645), (35, 7483104), (36, 7275240), (40, 6547716), (42, 6235920), (45, 5820192), (48, 5456430), (54, 4850160), (56, 4676940), (60, 4365144), (63, 4157280), (70, 3741552), (72, 3637620), (80, 3273858), (81, 3233440), (84, 3117960), (90, 2910096), (96, 2728215), (105, 2494368), (108, 2425080), (112, 2338470), (120, 2182572), (126, 2078640), (135, 1940064), (140, 1870776), (144, 1818810), (160, 1636929), (162, 1616720), (168, 1558980), (180, 1455048), (189, 1385760), (210, 1247184), (216, 1212540), (224, 1169235), (240, 1091286), (252, 1039320), (270, 970032), (280, 935388), (288, 909405), (315, 831456), (324, 808360), (336, 779490), (360, 727524), (378, 692880), (405, 646688), (420, 623592), (432, 606270), (480, 545643), (504, 519660), (540, 485016), (560, 467694), (567, 461920), (630, 415728), (648, 404180), (672, 389745), (720, 363762), (756, 346440), (810, 323344), (840, 311796), (864, 303135), (945, 277152), (1008, 259830), (1080, 242508), (1120, 233847), (1134, 230960), (1260, 207864), (1296, 202090), (1440, 181881), (1512, 173220), (1620, 161672), (1680, 155898), (1890, 138576), (2016, 129915), (2160, 121254), (2268, 115480), (2520, 103932), (2592, 101045), (2835, 92384), (2887, 90720), (3024, 86610), (3240, 80836), (3360, 77949), (3780, 69288), (4320, 60627), (4536, 57740), (5040, 51966), (5670, 46192), (5774, 45360), (6048, 43305), (6480, 40418), (7560, 34644), (8661, 30240), (9072, 28870), (10080, 25983), (11340, 23096), (11548, 22680), (12960, 20209), (14435, 18144), (15120, 17322)]