81857776

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:327

約数の個数: 160

約数和(自身を含む): 224985600

約数和(自身を除く): 143127824

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 19, 22, 26, 28, 38, 44, 52, 56, 76, 77, 88, 91, 104, 112, 133, 143, 152, 154, 176, 182, 208, 209, 247, 266, 269, 286, 304, 308, 364, 418, 494, 532, 538, 572, 616, 728, 836, 988, 1001, 1064, 1076, 1144, 1232, 1456, 1463, 1672, 1729, 1883, 1976, 2002, 2128, 2152, 2288, 2717, 2926, 2959, 3344, 3458, 3497, 3766, 3952, 4004, 4304, 5111, 5434, 5852, 5918, 6916, 6994, 7532, 8008, 10222, 10868, 11704, 11836, 13832, 13988, 15064, 16016, 19019, 20444, 20713, 21736, 23408, 23672, 24479, 27664, 27976, 30128, 35777, 38038, 38467, 40888, 41426, 43472, 47344, 48958, 55952, 56221, 66443, 71554, 76076, 76934, 81776, 82852, 97916, 112442, 132886, 143108, 152152, 153868, 165704, 195832, 224884, 265772, 269269, 286216, 304304, 307736, 331408, 391664, 393547, 449768, 465101, 531544, 538538, 572432, 615472, 730873, 787094, 899536, 930202, 1063088, 1077076, 1461746, 1574188, 1860404, 2154152, 2923492, 3148376, 3720808, 4308304, 5116111, 5846984, 6296752, 7441616, 10232222, 11693968, 20464444, 40928888, 81857776]

約数ペア:

[(1, 81857776), (2, 40928888), (4, 20464444), (7, 11693968), (8, 10232222), (11, 7441616), (13, 6296752), (14, 5846984), (16, 5116111), (19, 4308304), (22, 3720808), (26, 3148376), (28, 2923492), (38, 2154152), (44, 1860404), (52, 1574188), (56, 1461746), (76, 1077076), (77, 1063088), (88, 930202), (91, 899536), (104, 787094), (112, 730873), (133, 615472), (143, 572432), (152, 538538), (154, 531544), (176, 465101), (182, 449768), (208, 393547), (209, 391664), (247, 331408), (266, 307736), (269, 304304), (286, 286216), (304, 269269), (308, 265772), (364, 224884), (418, 195832), (494, 165704), (532, 153868), (538, 152152), (572, 143108), (616, 132886), (728, 112442), (836, 97916), (988, 82852), (1001, 81776), (1064, 76934), (1076, 76076), (1144, 71554), (1232, 66443), (1456, 56221), (1463, 55952), (1672, 48958), (1729, 47344), (1883, 43472), (1976, 41426), (2002, 40888), (2128, 38467), (2152, 38038), (2288, 35777), (2717, 30128), (2926, 27976), (2959, 27664), (3344, 24479), (3458, 23672), (3497, 23408), (3766, 21736), (3952, 20713), (4004, 20444), (4304, 19019), (5111, 16016), (5434, 15064), (5852, 13988), (5918, 13832), (6916, 11836), (6994, 11704), (7532, 10868), (8008, 10222)]