81241608

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 241920000

約数和(自身を除く): 160678392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 71, 84, 98, 139, 142, 147, 168, 196, 213, 278, 284, 294, 343, 392, 417, 426, 497, 556, 568, 588, 686, 834, 852, 973, 994, 1029, 1112, 1176, 1372, 1491, 1668, 1704, 1946, 1988, 2058, 2744, 2919, 2982, 3336, 3479, 3892, 3976, 4116, 5838, 5964, 6811, 6958, 7784, 8232, 9869, 10437, 11676, 11928, 13622, 13916, 19738, 20433, 20874, 23352, 24353, 27244, 27832, 29607, 39476, 40866, 41748, 47677, 48706, 54488, 59214, 69083, 73059, 78952, 81732, 83496, 95354, 97412, 118428, 138166, 143031, 146118, 163464, 190708, 194824, 207249, 236856, 276332, 286062, 292236, 381416, 414498, 483581, 552664, 572124, 584472, 828996, 967162, 1144248, 1450743, 1657992, 1934324, 2901486, 3385067, 3868648, 5802972, 6770134, 10155201, 11605944, 13540268, 20310402, 27080536, 40620804, 81241608]

約数ペア:

[(1, 81241608), (2, 40620804), (3, 27080536), (4, 20310402), (6, 13540268), (7, 11605944), (8, 10155201), (12, 6770134), (14, 5802972), (21, 3868648), (24, 3385067), (28, 2901486), (42, 1934324), (49, 1657992), (56, 1450743), (71, 1144248), (84, 967162), (98, 828996), (139, 584472), (142, 572124), (147, 552664), (168, 483581), (196, 414498), (213, 381416), (278, 292236), (284, 286062), (294, 276332), (343, 236856), (392, 207249), (417, 194824), (426, 190708), (497, 163464), (556, 146118), (568, 143031), (588, 138166), (686, 118428), (834, 97412), (852, 95354), (973, 83496), (994, 81732), (1029, 78952), (1112, 73059), (1176, 69083), (1372, 59214), (1491, 54488), (1668, 48706), (1704, 47677), (1946, 41748), (1988, 40866), (2058, 39476), (2744, 29607), (2919, 27832), (2982, 27244), (3336, 24353), (3479, 23352), (3892, 20874), (3976, 20433), (4116, 19738), (5838, 13916), (5964, 13622), (6811, 11928), (6958, 11676), (7784, 10437), (8232, 9869)]