68999840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{677}}^1$

素因数の和:719

約数の個数: 144

約数和(自身を含む): 204514632

約数和(自身を除く): 135514792

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 677, 728, 784, 910, 980, 1040, 1120, 1274, 1354, 1456, 1568, 1820, 1960, 2080, 2548, 2708, 2912, 3185, 3385, 3640, 3920, 4739, 5096, 5416, 6370, 6770, 7280, 7840, 8801, 9478, 10192, 10832, 12740, 13540, 14560, 17602, 18956, 20384, 21664, 23695, 25480, 27080, 33173, 35204, 37912, 44005, 47390, 50960, 54160, 61607, 66346, 70408, 75824, 88010, 94780, 101920, 108320, 123214, 132692, 140816, 151648, 165865, 176020, 189560, 246428, 265384, 281632, 308035, 331730, 352040, 379120, 431249, 492856, 530768, 616070, 663460, 704080, 758240, 862498, 985712, 1061536, 1232140, 1326920, 1408160, 1724996, 1971424, 2156245, 2464280, 2653840, 3449992, 4312490, 4928560, 5307680, 6899984, 8624980, 9857120, 13799968, 17249960, 34499920, 68999840]

約数ペア:

[(1, 68999840), (2, 34499920), (4, 17249960), (5, 13799968), (7, 9857120), (8, 8624980), (10, 6899984), (13, 5307680), (14, 4928560), (16, 4312490), (20, 3449992), (26, 2653840), (28, 2464280), (32, 2156245), (35, 1971424), (40, 1724996), (49, 1408160), (52, 1326920), (56, 1232140), (65, 1061536), (70, 985712), (80, 862498), (91, 758240), (98, 704080), (104, 663460), (112, 616070), (130, 530768), (140, 492856), (160, 431249), (182, 379120), (196, 352040), (208, 331730), (224, 308035), (245, 281632), (260, 265384), (280, 246428), (364, 189560), (392, 176020), (416, 165865), (455, 151648), (490, 140816), (520, 132692), (560, 123214), (637, 108320), (677, 101920), (728, 94780), (784, 88010), (910, 75824), (980, 70408), (1040, 66346), (1120, 61607), (1274, 54160), (1354, 50960), (1456, 47390), (1568, 44005), (1820, 37912), (1960, 35204), (2080, 33173), (2548, 27080), (2708, 25480), (2912, 23695), (3185, 21664), (3385, 20384), (3640, 18956), (3920, 17602), (4739, 14560), (5096, 13540), (5416, 12740), (6370, 10832), (6770, 10192), (7280, 9478), (7840, 8801)]