261484440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{311291}}^1$

素因数の和:311312

約数の個数: 64

約数和(自身を含む): 896520960

約数和(自身を除く): 635036520

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, 311291, 622582, 933873, 1245164, 1556455, 1867746, 2179037, 2490328, 3112910, 3735492, 4358074, 4669365, 6225820, 6537111, 7470984, 8716148, 9338730, 10895185, 12451640, 13074222, 17432296, 18677460, 21790370, 26148444, 32685555, 37354920, 43580740, 52296888, 65371110, 87161480, 130742220, 261484440]

約数ペア:

[(1, 261484440), (2, 130742220), (3, 87161480), (4, 65371110), (5, 52296888), (6, 43580740), (7, 37354920), (8, 32685555), (10, 26148444), (12, 21790370), (14, 18677460), (15, 17432296), (20, 13074222), (21, 12451640), (24, 10895185), (28, 9338730), (30, 8716148), (35, 7470984), (40, 6537111), (42, 6225820), (56, 4669365), (60, 4358074), (70, 3735492), (84, 3112910), (105, 2490328), (120, 2179037), (140, 1867746), (168, 1556455), (210, 1245164), (280, 933873), (420, 622582), (840, 311291)]