261537696

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:504

約数の個数: 216

約数和(自身を含む): 887350464

約数和(自身を除く): 625812768

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 43, 48, 49, 56, 63, 72, 84, 86, 96, 98, 112, 126, 129, 144, 147, 168, 172, 196, 224, 252, 258, 288, 294, 301, 336, 344, 387, 392, 431, 441, 504, 516, 588, 602, 672, 688, 774, 784, 862, 882, 903, 1008, 1032, 1176, 1204, 1293, 1376, 1548, 1568, 1724, 1764, 1806, 2016, 2064, 2107, 2352, 2408, 2586, 2709, 3017, 3096, 3448, 3528, 3612, 3879, 4128, 4214, 4704, 4816, 5172, 5418, 6034, 6192, 6321, 6896, 7056, 7224, 7758, 8428, 9051, 9632, 10344, 10836, 12068, 12384, 12642, 13792, 14112, 14448, 15516, 16856, 18102, 18533, 18963, 20688, 21119, 21672, 24136, 25284, 27153, 28896, 31032, 33712, 36204, 37066, 37926, 41376, 42238, 43344, 48272, 50568, 54306, 55599, 62064, 63357, 67424, 72408, 74132, 75852, 84476, 86688, 96544, 101136, 108612, 111198, 124128, 126714, 129731, 144816, 148264, 151704, 166797, 168952, 190071, 202272, 217224, 222396, 253428, 259462, 289632, 296528, 303408, 333594, 337904, 380142, 389193, 434448, 444792, 506856, 518924, 593056, 606816, 667188, 675808, 760284, 778386, 868896, 889584, 908117, 1013712, 1037848, 1167579, 1334376, 1520568, 1556772, 1779168, 1816234, 2027424, 2075696, 2335158, 2668752, 2724351, 3041136, 3113544, 3632468, 4151392, 4670316, 5337504, 5448702, 6082272, 6227088, 7264936, 8173053, 9340632, 10897404, 12454176, 14529872, 16346106, 18681264, 21794808, 29059744, 32692212, 37362528, 43589616, 65384424, 87179232, 130768848, 261537696]

約数ペア:

[(1, 261537696), (2, 130768848), (3, 87179232), (4, 65384424), (6, 43589616), (7, 37362528), (8, 32692212), (9, 29059744), (12, 21794808), (14, 18681264), (16, 16346106), (18, 14529872), (21, 12454176), (24, 10897404), (28, 9340632), (32, 8173053), (36, 7264936), (42, 6227088), (43, 6082272), (48, 5448702), (49, 5337504), (56, 4670316), (63, 4151392), (72, 3632468), (84, 3113544), (86, 3041136), (96, 2724351), (98, 2668752), (112, 2335158), (126, 2075696), (129, 2027424), (144, 1816234), (147, 1779168), (168, 1556772), (172, 1520568), (196, 1334376), (224, 1167579), (252, 1037848), (258, 1013712), (288, 908117), (294, 889584), (301, 868896), (336, 778386), (344, 760284), (387, 675808), (392, 667188), (431, 606816), (441, 593056), (504, 518924), (516, 506856), (588, 444792), (602, 434448), (672, 389193), (688, 380142), (774, 337904), (784, 333594), (862, 303408), (882, 296528), (903, 289632), (1008, 259462), (1032, 253428), (1176, 222396), (1204, 217224), (1293, 202272), (1376, 190071), (1548, 168952), (1568, 166797), (1724, 151704), (1764, 148264), (1806, 144816), (2016, 129731), (2064, 126714), (2107, 124128), (2352, 111198), (2408, 108612), (2586, 101136), (2709, 96544), (3017, 86688), (3096, 84476), (3448, 75852), (3528, 74132), (3612, 72408), (3879, 67424), (4128, 63357), (4214, 62064), (4704, 55599), (4816, 54306), (5172, 50568), (5418, 48272), (6034, 43344), (6192, 42238), (6321, 41376), (6896, 37926), (7056, 37066), (7224, 36204), (7758, 33712), (8428, 31032), (9051, 28896), (9632, 27153), (10344, 25284), (10836, 24136), (12068, 21672), (12384, 21119), (12642, 20688), (13792, 18963), (14112, 18533), (14448, 18102), (15516, 16856)]