68631680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 128

約数和(自身を含む): 180699120

約数和(自身を除く): 112067440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 73, 80, 104, 113, 128, 130, 146, 160, 208, 226, 260, 292, 320, 365, 416, 452, 520, 565, 584, 640, 730, 832, 904, 949, 1040, 1130, 1168, 1460, 1469, 1664, 1808, 1898, 2080, 2260, 2336, 2920, 2938, 3616, 3796, 4160, 4520, 4672, 4745, 5840, 5876, 7232, 7345, 7592, 8249, 8320, 9040, 9344, 9490, 11680, 11752, 14464, 14690, 15184, 16498, 18080, 18980, 23360, 23504, 29380, 30368, 32996, 36160, 37960, 41245, 46720, 47008, 58760, 60736, 65992, 72320, 75920, 82490, 94016, 107237, 117520, 121472, 131984, 151840, 164980, 188032, 214474, 235040, 263968, 303680, 329960, 428948, 470080, 527936, 536185, 607360, 659920, 857896, 940160, 1055872, 1072370, 1319840, 1715792, 2144740, 2639680, 3431584, 4289480, 5279360, 6863168, 8578960, 13726336, 17157920, 34315840, 68631680]

約数ペア:

[(1, 68631680), (2, 34315840), (4, 17157920), (5, 13726336), (8, 8578960), (10, 6863168), (13, 5279360), (16, 4289480), (20, 3431584), (26, 2639680), (32, 2144740), (40, 1715792), (52, 1319840), (64, 1072370), (65, 1055872), (73, 940160), (80, 857896), (104, 659920), (113, 607360), (128, 536185), (130, 527936), (146, 470080), (160, 428948), (208, 329960), (226, 303680), (260, 263968), (292, 235040), (320, 214474), (365, 188032), (416, 164980), (452, 151840), (520, 131984), (565, 121472), (584, 117520), (640, 107237), (730, 94016), (832, 82490), (904, 75920), (949, 72320), (1040, 65992), (1130, 60736), (1168, 58760), (1460, 47008), (1469, 46720), (1664, 41245), (1808, 37960), (1898, 36160), (2080, 32996), (2260, 30368), (2336, 29380), (2920, 23504), (2938, 23360), (3616, 18980), (3796, 18080), (4160, 16498), (4520, 15184), (4672, 14690), (4745, 14464), (5840, 11752), (5876, 11680), (7232, 9490), (7345, 9344), (7592, 9040), (8249, 8320)]