81490656

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:233

約数の個数: 192

約数和(自身を含む): 256048128

約数和(自身を除く): 174557472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 23, 24, 26, 32, 34, 39, 46, 48, 51, 52, 68, 69, 78, 92, 96, 102, 104, 136, 138, 156, 167, 184, 204, 208, 221, 272, 276, 299, 312, 334, 368, 391, 408, 416, 442, 501, 544, 552, 598, 624, 663, 668, 736, 782, 816, 884, 897, 1002, 1104, 1173, 1196, 1248, 1326, 1336, 1564, 1632, 1768, 1794, 2004, 2171, 2208, 2346, 2392, 2652, 2672, 2839, 3128, 3536, 3588, 3841, 4008, 4342, 4692, 4784, 5083, 5304, 5344, 5678, 6256, 6513, 7072, 7176, 7682, 8016, 8517, 8684, 9384, 9568, 10166, 10608, 11356, 11523, 12512, 13026, 14352, 15249, 15364, 16032, 17034, 17368, 18768, 20332, 21216, 22712, 23046, 26052, 28704, 30498, 30728, 34068, 34736, 36907, 37536, 40664, 45424, 46092, 49933, 52104, 60996, 61456, 65297, 68136, 69472, 73814, 81328, 90848, 92184, 99866, 104208, 110721, 121992, 122912, 130594, 136272, 147628, 149799, 162656, 184368, 195891, 199732, 208416, 221442, 243984, 261188, 272544, 295256, 299598, 368736, 391782, 399464, 442884, 487968, 522376, 590512, 599196, 783564, 798928, 848861, 885768, 1044752, 1181024, 1198392, 1567128, 1597856, 1697722, 1771536, 2089504, 2396784, 2546583, 3134256, 3395444, 3543072, 4793568, 5093166, 6268512, 6790888, 10186332, 13581776, 20372664, 27163552, 40745328, 81490656]

約数ペア:

[(1, 81490656), (2, 40745328), (3, 27163552), (4, 20372664), (6, 13581776), (8, 10186332), (12, 6790888), (13, 6268512), (16, 5093166), (17, 4793568), (23, 3543072), (24, 3395444), (26, 3134256), (32, 2546583), (34, 2396784), (39, 2089504), (46, 1771536), (48, 1697722), (51, 1597856), (52, 1567128), (68, 1198392), (69, 1181024), (78, 1044752), (92, 885768), (96, 848861), (102, 798928), (104, 783564), (136, 599196), (138, 590512), (156, 522376), (167, 487968), (184, 442884), (204, 399464), (208, 391782), (221, 368736), (272, 299598), (276, 295256), (299, 272544), (312, 261188), (334, 243984), (368, 221442), (391, 208416), (408, 199732), (416, 195891), (442, 184368), (501, 162656), (544, 149799), (552, 147628), (598, 136272), (624, 130594), (663, 122912), (668, 121992), (736, 110721), (782, 104208), (816, 99866), (884, 92184), (897, 90848), (1002, 81328), (1104, 73814), (1173, 69472), (1196, 68136), (1248, 65297), (1326, 61456), (1336, 60996), (1564, 52104), (1632, 49933), (1768, 46092), (1794, 45424), (2004, 40664), (2171, 37536), (2208, 36907), (2346, 34736), (2392, 34068), (2652, 30728), (2672, 30498), (2839, 28704), (3128, 26052), (3536, 23046), (3588, 22712), (3841, 21216), (4008, 20332), (4342, 18768), (4692, 17368), (4784, 17034), (5083, 16032), (5304, 15364), (5344, 15249), (5678, 14352), (6256, 13026), (6513, 12512), (7072, 11523), (7176, 11356), (7682, 10608), (8016, 10166), (8517, 9568), (8684, 9384)]