203987280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{121421}}^1$

素因数の和:121444

約数の個数: 80

約数和(自身を含む): 722703744

約数和(自身を除く): 518716464

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 121421, 242842, 364263, 485684, 607105, 728526, 849947, 971368, 1214210, 1457052, 1699894, 1821315, 1942736, 2428420, 2549841, 2914104, 3399788, 3642630, 4249735, 4856840, 5099682, 5828208, 6799576, 7285260, 8499470, 9713680, 10199364, 12749205, 13599152, 14570520, 16998940, 20398728, 25498410, 29141040, 33997880, 40797456, 50996820, 67995760, 101993640, 203987280]

約数ペア:

[(1, 203987280), (2, 101993640), (3, 67995760), (4, 50996820), (5, 40797456), (6, 33997880), (7, 29141040), (8, 25498410), (10, 20398728), (12, 16998940), (14, 14570520), (15, 13599152), (16, 12749205), (20, 10199364), (21, 9713680), (24, 8499470), (28, 7285260), (30, 6799576), (35, 5828208), (40, 5099682), (42, 4856840), (48, 4249735), (56, 3642630), (60, 3399788), (70, 2914104), (80, 2549841), (84, 2428420), (105, 1942736), (112, 1821315), (120, 1699894), (140, 1457052), (168, 1214210), (210, 971368), (240, 849947), (280, 728526), (336, 607105), (420, 485684), (560, 364263), (840, 242842), (1680, 121421)]