261581712

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:505

約数の個数: 160

約数和(自身を含む): 810162432

約数和(自身を除く): 548580720

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 53, 56, 74, 84, 106, 111, 112, 148, 159, 168, 212, 222, 259, 296, 318, 336, 371, 397, 424, 444, 518, 592, 636, 742, 777, 794, 848, 888, 1036, 1113, 1191, 1272, 1484, 1554, 1588, 1776, 1961, 2072, 2226, 2382, 2544, 2779, 2968, 3108, 3176, 3922, 4144, 4452, 4764, 5558, 5883, 5936, 6216, 6352, 7844, 8337, 8904, 9528, 11116, 11766, 12432, 13727, 14689, 15688, 16674, 17808, 19056, 21041, 22232, 23532, 27454, 29378, 31376, 33348, 41181, 42082, 44067, 44464, 47064, 54908, 58756, 63123, 66696, 82362, 84164, 88134, 94128, 102823, 109816, 117512, 126246, 133392, 147287, 164724, 168328, 176268, 205646, 219632, 235024, 252492, 294574, 308469, 329448, 336656, 352536, 411292, 441861, 504984, 589148, 616938, 658896, 705072, 778517, 822584, 883722, 1009968, 1178296, 1233876, 1557034, 1645168, 1767444, 2335551, 2356592, 2467752, 3114068, 3534888, 4671102, 4935504, 5449619, 6228136, 7069776, 9342204, 10899238, 12456272, 16348857, 18684408, 21798476, 32697714, 37368816, 43596952, 65395428, 87193904, 130790856, 261581712]

約数ペア:

[(1, 261581712), (2, 130790856), (3, 87193904), (4, 65395428), (6, 43596952), (7, 37368816), (8, 32697714), (12, 21798476), (14, 18684408), (16, 16348857), (21, 12456272), (24, 10899238), (28, 9342204), (37, 7069776), (42, 6228136), (48, 5449619), (53, 4935504), (56, 4671102), (74, 3534888), (84, 3114068), (106, 2467752), (111, 2356592), (112, 2335551), (148, 1767444), (159, 1645168), (168, 1557034), (212, 1233876), (222, 1178296), (259, 1009968), (296, 883722), (318, 822584), (336, 778517), (371, 705072), (397, 658896), (424, 616938), (444, 589148), (518, 504984), (592, 441861), (636, 411292), (742, 352536), (777, 336656), (794, 329448), (848, 308469), (888, 294574), (1036, 252492), (1113, 235024), (1191, 219632), (1272, 205646), (1484, 176268), (1554, 168328), (1588, 164724), (1776, 147287), (1961, 133392), (2072, 126246), (2226, 117512), (2382, 109816), (2544, 102823), (2779, 94128), (2968, 88134), (3108, 84164), (3176, 82362), (3922, 66696), (4144, 63123), (4452, 58756), (4764, 54908), (5558, 47064), (5883, 44464), (5936, 44067), (6216, 42082), (6352, 41181), (7844, 33348), (8337, 31376), (8904, 29378), (9528, 27454), (11116, 23532), (11766, 22232), (12432, 21041), (13727, 19056), (14689, 17808), (15688, 16674)]