254690520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1571}}^1$

素因数の和:1785

約数の個数: 128

約数和(自身を含む): 878307840

約数和(自身を除く): 623617320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 193, 210, 280, 386, 420, 579, 772, 840, 965, 1158, 1351, 1544, 1571, 1930, 2316, 2702, 2895, 3142, 3860, 4053, 4632, 4713, 5404, 5790, 6284, 6755, 7720, 7855, 8106, 9426, 10808, 10997, 11580, 12568, 13510, 15710, 16212, 18852, 20265, 21994, 23160, 23565, 27020, 31420, 32424, 32991, 37704, 40530, 43988, 47130, 54040, 54985, 62840, 65982, 81060, 87976, 94260, 109970, 131964, 162120, 164955, 188520, 219940, 263928, 303203, 329910, 439880, 606406, 659820, 909609, 1212812, 1319640, 1516015, 1819218, 2122421, 2425624, 3032030, 3638436, 4244842, 4548045, 6064060, 6367263, 7276872, 8489684, 9096090, 10612105, 12128120, 12734526, 16979368, 18192180, 21224210, 25469052, 31836315, 36384360, 42448420, 50938104, 63672630, 84896840, 127345260, 254690520]

約数ペア:

[(1, 254690520), (2, 127345260), (3, 84896840), (4, 63672630), (5, 50938104), (6, 42448420), (7, 36384360), (8, 31836315), (10, 25469052), (12, 21224210), (14, 18192180), (15, 16979368), (20, 12734526), (21, 12128120), (24, 10612105), (28, 9096090), (30, 8489684), (35, 7276872), (40, 6367263), (42, 6064060), (56, 4548045), (60, 4244842), (70, 3638436), (84, 3032030), (105, 2425624), (120, 2122421), (140, 1819218), (168, 1516015), (193, 1319640), (210, 1212812), (280, 909609), (386, 659820), (420, 606406), (579, 439880), (772, 329910), (840, 303203), (965, 263928), (1158, 219940), (1351, 188520), (1544, 164955), (1571, 162120), (1930, 131964), (2316, 109970), (2702, 94260), (2895, 87976), (3142, 81060), (3860, 65982), (4053, 62840), (4632, 54985), (4713, 54040), (5404, 47130), (5790, 43988), (6284, 40530), (6755, 37704), (7720, 32991), (7855, 32424), (8106, 31420), (9426, 27020), (10808, 23565), (10997, 23160), (11580, 21994), (12568, 20265), (13510, 18852), (15710, 16212)]