81587808

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:261

約数の個数: 144

約数和(自身を含む): 246486240

約数和(自身を除く): 164898432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 92, 96, 109, 113, 138, 144, 184, 207, 218, 226, 276, 288, 327, 339, 368, 414, 436, 452, 552, 654, 678, 736, 828, 872, 904, 981, 1017, 1104, 1308, 1356, 1656, 1744, 1808, 1962, 2034, 2208, 2507, 2599, 2616, 2712, 3312, 3488, 3616, 3924, 4068, 5014, 5198, 5232, 5424, 6624, 7521, 7797, 7848, 8136, 10028, 10396, 10464, 10848, 12317, 15042, 15594, 15696, 16272, 20056, 20792, 22563, 23391, 24634, 30084, 31188, 31392, 32544, 36951, 40112, 41584, 45126, 46782, 49268, 60168, 62376, 73902, 80224, 83168, 90252, 93564, 98536, 110853, 120336, 124752, 147804, 180504, 187128, 197072, 221706, 240672, 249504, 283291, 295608, 361008, 374256, 394144, 443412, 566582, 591216, 722016, 748512, 849873, 886824, 1133164, 1182432, 1699746, 1773648, 2266328, 2549619, 3399492, 3547296, 4532656, 5099238, 6798984, 9065312, 10198476, 13597968, 20396952, 27195936, 40793904, 81587808]

約数ペア:

[(1, 81587808), (2, 40793904), (3, 27195936), (4, 20396952), (6, 13597968), (8, 10198476), (9, 9065312), (12, 6798984), (16, 5099238), (18, 4532656), (23, 3547296), (24, 3399492), (32, 2549619), (36, 2266328), (46, 1773648), (48, 1699746), (69, 1182432), (72, 1133164), (92, 886824), (96, 849873), (109, 748512), (113, 722016), (138, 591216), (144, 566582), (184, 443412), (207, 394144), (218, 374256), (226, 361008), (276, 295608), (288, 283291), (327, 249504), (339, 240672), (368, 221706), (414, 197072), (436, 187128), (452, 180504), (552, 147804), (654, 124752), (678, 120336), (736, 110853), (828, 98536), (872, 93564), (904, 90252), (981, 83168), (1017, 80224), (1104, 73902), (1308, 62376), (1356, 60168), (1656, 49268), (1744, 46782), (1808, 45126), (1962, 41584), (2034, 40112), (2208, 36951), (2507, 32544), (2599, 31392), (2616, 31188), (2712, 30084), (3312, 24634), (3488, 23391), (3616, 22563), (3924, 20792), (4068, 20056), (5014, 16272), (5198, 15696), (5232, 15594), (5424, 15042), (6624, 12317), (7521, 10848), (7797, 10464), (7848, 10396), (8136, 10028)]