81699100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{919}}^1$

素因数の和:1067

約数の個数: 72

約数和(自身を含む): 204431360

約数和(自身を除く): 122732260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 127, 140, 175, 254, 350, 508, 635, 700, 889, 919, 1270, 1778, 1838, 2540, 3175, 3556, 3676, 4445, 4595, 6350, 6433, 8890, 9190, 12700, 12866, 17780, 18380, 22225, 22975, 25732, 32165, 44450, 45950, 64330, 88900, 91900, 116713, 128660, 160825, 233426, 321650, 466852, 583565, 643300, 816991, 1167130, 1633982, 2334260, 2917825, 3267964, 4084955, 5835650, 8169910, 11671300, 16339820, 20424775, 40849550, 81699100]

約数ペア:

[(1, 81699100), (2, 40849550), (4, 20424775), (5, 16339820), (7, 11671300), (10, 8169910), (14, 5835650), (20, 4084955), (25, 3267964), (28, 2917825), (35, 2334260), (50, 1633982), (70, 1167130), (100, 816991), (127, 643300), (140, 583565), (175, 466852), (254, 321650), (350, 233426), (508, 160825), (635, 128660), (700, 116713), (889, 91900), (919, 88900), (1270, 64330), (1778, 45950), (1838, 44450), (2540, 32165), (3175, 25732), (3556, 22975), (3676, 22225), (4445, 18380), (4595, 17780), (6350, 12866), (6433, 12700), (8890, 9190)]