261396216

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^2$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 783207360

約数和(自身を除く): 521811144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 31, 34, 36, 51, 62, 68, 72, 83, 93, 102, 124, 136, 153, 166, 186, 204, 248, 249, 279, 306, 332, 372, 408, 498, 527, 558, 612, 664, 744, 747, 996, 1054, 1116, 1224, 1411, 1494, 1581, 1992, 2108, 2232, 2573, 2822, 2988, 3162, 4216, 4233, 4743, 5146, 5644, 5976, 6324, 6889, 7719, 8466, 9486, 10292, 11288, 12648, 12699, 13778, 15438, 16932, 18972, 20584, 20667, 23157, 25398, 27556, 30876, 33864, 37944, 41334, 43741, 46314, 50796, 55112, 61752, 62001, 82668, 87482, 92628, 101592, 117113, 124002, 131223, 165336, 174964, 185256, 213559, 234226, 248004, 262446, 349928, 351339, 393669, 427118, 468452, 496008, 524892, 640677, 702678, 787338, 854236, 936904, 1049784, 1054017, 1281354, 1405356, 1574676, 1708472, 1922031, 2108034, 2562708, 2810712, 3149352, 3630503, 3844062, 4216068, 5125416, 7261006, 7688124, 8432136, 10891509, 14522012, 15376248, 21783018, 29044024, 32674527, 43566036, 65349054, 87132072, 130698108, 261396216]

約数ペア:

[(1, 261396216), (2, 130698108), (3, 87132072), (4, 65349054), (6, 43566036), (8, 32674527), (9, 29044024), (12, 21783018), (17, 15376248), (18, 14522012), (24, 10891509), (31, 8432136), (34, 7688124), (36, 7261006), (51, 5125416), (62, 4216068), (68, 3844062), (72, 3630503), (83, 3149352), (93, 2810712), (102, 2562708), (124, 2108034), (136, 1922031), (153, 1708472), (166, 1574676), (186, 1405356), (204, 1281354), (248, 1054017), (249, 1049784), (279, 936904), (306, 854236), (332, 787338), (372, 702678), (408, 640677), (498, 524892), (527, 496008), (558, 468452), (612, 427118), (664, 393669), (744, 351339), (747, 349928), (996, 262446), (1054, 248004), (1116, 234226), (1224, 213559), (1411, 185256), (1494, 174964), (1581, 165336), (1992, 131223), (2108, 124002), (2232, 117113), (2573, 101592), (2822, 92628), (2988, 87482), (3162, 82668), (4216, 62001), (4233, 61752), (4743, 55112), (5146, 50796), (5644, 46314), (5976, 43741), (6324, 41334), (6889, 37944), (7719, 33864), (8466, 30876), (9486, 27556), (10292, 25398), (11288, 23157), (12648, 20667), (12699, 20584), (13778, 18972), (15438, 16932)]