27686820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{65921}}^1$

素因数の和:65940

約数の個数: 48

約数和(自身を含む): 88599168

約数和(自身を除く): 60912348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 65921, 131842, 197763, 263684, 329605, 395526, 461447, 659210, 791052, 922894, 988815, 1318420, 1384341, 1845788, 1977630, 2307235, 2768682, 3955260, 4614470, 5537364, 6921705, 9228940, 13843410, 27686820]

約数ペア:

[(1, 27686820), (2, 13843410), (3, 9228940), (4, 6921705), (5, 5537364), (6, 4614470), (7, 3955260), (10, 2768682), (12, 2307235), (14, 1977630), (15, 1845788), (20, 1384341), (21, 1318420), (28, 988815), (30, 922894), (35, 791052), (42, 659210), (60, 461447), (70, 395526), (84, 329605), (105, 263684), (140, 197763), (210, 131842), (420, 65921)]