20488545

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1$

素因数の和:114

約数の個数: 112

約数和(自身を含む): 46588032

約数和(自身を除く): 26099487

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 73, 77, 81, 99, 105, 135, 165, 189, 219, 231, 243, 297, 315, 365, 385, 405, 495, 511, 567, 657, 693, 729, 803, 891, 945, 1095, 1155, 1215, 1485, 1533, 1701, 1971, 2079, 2409, 2555, 2673, 2835, 3285, 3465, 3645, 4015, 4455, 4599, 5103, 5621, 5913, 6237, 7227, 7665, 8019, 8505, 9855, 10395, 12045, 13365, 13797, 16863, 17739, 18711, 21681, 22995, 25515, 28105, 29565, 31185, 36135, 40095, 41391, 50589, 53217, 56133, 65043, 68985, 84315, 88695, 93555, 108405, 124173, 151767, 195129, 206955, 252945, 266085, 280665, 325215, 372519, 455301, 585387, 620865, 758835, 975645, 1365903, 1862595, 2276505, 2926935, 4097709, 6829515, 20488545]

約数ペア:

[(1, 20488545), (3, 6829515), (5, 4097709), (7, 2926935), (9, 2276505), (11, 1862595), (15, 1365903), (21, 975645), (27, 758835), (33, 620865), (35, 585387), (45, 455301), (55, 372519), (63, 325215), (73, 280665), (77, 266085), (81, 252945), (99, 206955), (105, 195129), (135, 151767), (165, 124173), (189, 108405), (219, 93555), (231, 88695), (243, 84315), (297, 68985), (315, 65043), (365, 56133), (385, 53217), (405, 50589), (495, 41391), (511, 40095), (567, 36135), (657, 31185), (693, 29565), (729, 28105), (803, 25515), (891, 22995), (945, 21681), (1095, 18711), (1155, 17739), (1215, 16863), (1485, 13797), (1533, 13365), (1701, 12045), (1971, 10395), (2079, 9855), (2409, 8505), (2555, 8019), (2673, 7665), (2835, 7227), (3285, 6237), (3465, 5913), (3645, 5621), (4015, 5103), (4455, 4599)]