81397968

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{349}}^1$

素因数の和:516

約数の個数: 80

約数和(自身を含む): 217694400

約数和(自身を除く): 136296432

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 113, 129, 172, 226, 258, 339, 344, 349, 452, 516, 678, 688, 698, 904, 1032, 1047, 1356, 1396, 1808, 2064, 2094, 2712, 2792, 4188, 4859, 5424, 5584, 8376, 9718, 14577, 15007, 16752, 19436, 29154, 30014, 38872, 39437, 45021, 58308, 60028, 77744, 78874, 90042, 116616, 118311, 120056, 157748, 180084, 233232, 236622, 240112, 315496, 360168, 473244, 630992, 720336, 946488, 1695791, 1892976, 3391582, 5087373, 6783164, 10174746, 13566328, 20349492, 27132656, 40698984, 81397968]

約数ペア:

[(1, 81397968), (2, 40698984), (3, 27132656), (4, 20349492), (6, 13566328), (8, 10174746), (12, 6783164), (16, 5087373), (24, 3391582), (43, 1892976), (48, 1695791), (86, 946488), (113, 720336), (129, 630992), (172, 473244), (226, 360168), (258, 315496), (339, 240112), (344, 236622), (349, 233232), (452, 180084), (516, 157748), (678, 120056), (688, 118311), (698, 116616), (904, 90042), (1032, 78874), (1047, 77744), (1356, 60028), (1396, 58308), (1808, 45021), (2064, 39437), (2094, 38872), (2712, 30014), (2792, 29154), (4188, 19436), (4859, 16752), (5424, 15007), (5584, 14577), (8376, 9718)]