28913640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{34421}}^1$

素因数の和:34442

約数の個数: 64

約数和(自身を含む): 99135360

約数和(自身を除く): 70221720

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, 210, 280, 420, 840, 34421, 68842, 103263, 137684, 172105, 206526, 240947, 275368, 344210, 413052, 481894, 516315, 688420, 722841, 826104, 963788, 1032630, 1204735, 1376840, 1445682, 1927576, 2065260, 2409470, 2891364, 3614205, 4130520, 4818940, 5782728, 7228410, 9637880, 14456820, 28913640]

約数ペア:

[(1, 28913640), (2, 14456820), (3, 9637880), (4, 7228410), (5, 5782728), (6, 4818940), (7, 4130520), (8, 3614205), (10, 2891364), (12, 2409470), (14, 2065260), (15, 1927576), (20, 1445682), (21, 1376840), (24, 1204735), (28, 1032630), (30, 963788), (35, 826104), (40, 722841), (42, 688420), (56, 516315), (60, 481894), (70, 413052), (84, 344210), (105, 275368), (120, 240947), (140, 206526), (168, 172105), (210, 137684), (280, 103263), (420, 68842), (840, 34421)]