261526440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{311341}}^1$

素因数の和:311362

約数の個数: 64

約数和(自身を含む): 896664960

約数和(自身を除く): 635138520

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, 311341, 622682, 934023, 1245364, 1556705, 1868046, 2179387, 2490728, 3113410, 3736092, 4358774, 4670115, 6226820, 6538161, 7472184, 8717548, 9340230, 10896935, 12453640, 13076322, 17435096, 18680460, 21793870, 26152644, 32690805, 37360920, 43587740, 52305288, 65381610, 87175480, 130763220, 261526440]

約数ペア:

[(1, 261526440), (2, 130763220), (3, 87175480), (4, 65381610), (5, 52305288), (6, 43587740), (7, 37360920), (8, 32690805), (10, 26152644), (12, 21793870), (14, 18680460), (15, 17435096), (20, 13076322), (21, 12453640), (24, 10896935), (28, 9340230), (30, 8717548), (35, 7472184), (40, 6538161), (42, 6226820), (56, 4670115), (60, 4358774), (70, 3736092), (84, 3113410), (105, 2490728), (120, 2179387), (140, 1868046), (168, 1556705), (210, 1245364), (280, 934023), (420, 622682), (840, 311341)]