261965340

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1777}}^1$

素因数の和:1818

約数の個数: 240

約数和(自身を含む): 1012009152

約数和(自身を除く): 750043812

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 70, 78, 81, 84, 90, 91, 105, 108, 117, 126, 130, 135, 140, 156, 162, 180, 182, 189, 195, 210, 234, 252, 260, 270, 273, 315, 324, 351, 364, 378, 390, 405, 420, 455, 468, 540, 546, 567, 585, 630, 702, 756, 780, 810, 819, 910, 945, 1053, 1092, 1134, 1170, 1260, 1365, 1404, 1620, 1638, 1755, 1777, 1820, 1890, 2106, 2268, 2340, 2457, 2730, 2835, 3276, 3510, 3554, 3780, 4095, 4212, 4914, 5265, 5331, 5460, 5670, 7020, 7108, 7371, 8190, 8885, 9828, 10530, 10662, 11340, 12285, 12439, 14742, 15993, 16380, 17770, 21060, 21324, 23101, 24570, 24878, 26655, 29484, 31986, 35540, 36855, 37317, 46202, 47979, 49140, 49756, 53310, 62195, 63972, 69303, 73710, 74634, 79965, 92404, 95958, 106620, 111951, 115505, 124390, 138606, 143937, 147420, 149268, 159930, 161707, 186585, 191916, 207909, 223902, 231010, 239895, 248780, 277212, 287874, 319860, 323414, 335853, 346515, 373170, 415818, 447804, 462020, 479790, 485121, 559755, 575748, 623727, 646828, 671706, 693030, 719685, 746340, 808535, 831636, 959580, 970242, 1007559, 1039545, 1119510, 1247454, 1343412, 1386060, 1439370, 1455363, 1617070, 1679265, 1871181, 1940484, 2015118, 2079090, 2239020, 2425605, 2494908, 2878740, 2910726, 3118635, 3234140, 3358530, 3742362, 4030236, 4158180, 4366089, 4851210, 5037795, 5821452, 6237270, 6717060, 7276815, 7484724, 8732178, 9355905, 9702420, 10075590, 12474540, 13098267, 14553630, 17464356, 18711810, 20151180, 21830445, 26196534, 29107260, 37423620, 43660890, 52393068, 65491335, 87321780, 130982670, 261965340]

約数ペア:

[(1, 261965340), (2, 130982670), (3, 87321780), (4, 65491335), (5, 52393068), (6, 43660890), (7, 37423620), (9, 29107260), (10, 26196534), (12, 21830445), (13, 20151180), (14, 18711810), (15, 17464356), (18, 14553630), (20, 13098267), (21, 12474540), (26, 10075590), (27, 9702420), (28, 9355905), (30, 8732178), (35, 7484724), (36, 7276815), (39, 6717060), (42, 6237270), (45, 5821452), (52, 5037795), (54, 4851210), (60, 4366089), (63, 4158180), (65, 4030236), (70, 3742362), (78, 3358530), (81, 3234140), (84, 3118635), (90, 2910726), (91, 2878740), (105, 2494908), (108, 2425605), (117, 2239020), (126, 2079090), (130, 2015118), (135, 1940484), (140, 1871181), (156, 1679265), (162, 1617070), (180, 1455363), (182, 1439370), (189, 1386060), (195, 1343412), (210, 1247454), (234, 1119510), (252, 1039545), (260, 1007559), (270, 970242), (273, 959580), (315, 831636), (324, 808535), (351, 746340), (364, 719685), (378, 693030), (390, 671706), (405, 646828), (420, 623727), (455, 575748), (468, 559755), (540, 485121), (546, 479790), (567, 462020), (585, 447804), (630, 415818), (702, 373170), (756, 346515), (780, 335853), (810, 323414), (819, 319860), (910, 287874), (945, 277212), (1053, 248780), (1092, 239895), (1134, 231010), (1170, 223902), (1260, 207909), (1365, 191916), (1404, 186585), (1620, 161707), (1638, 159930), (1755, 149268), (1777, 147420), (1820, 143937), (1890, 138606), (2106, 124390), (2268, 115505), (2340, 111951), (2457, 106620), (2730, 95958), (2835, 92404), (3276, 79965), (3510, 74634), (3554, 73710), (3780, 69303), (4095, 63972), (4212, 62195), (4914, 53310), (5265, 49756), (5331, 49140), (5460, 47979), (5670, 46202), (7020, 37317), (7108, 36855), (7371, 35540), (8190, 31986), (8885, 29484), (9828, 26655), (10530, 24878), (10662, 24570), (11340, 23101), (12285, 21324), (12439, 21060), (14742, 17770), (15993, 16380)]