131761840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{235289}}^1$

素因数の和:235309

約数の個数: 40

約数和(自身を含む): 350111520

約数和(自身を除く): 218349680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 235289, 470578, 941156, 1176445, 1647023, 1882312, 2352890, 3294046, 3764624, 4705780, 6588092, 8235115, 9411560, 13176184, 16470230, 18823120, 26352368, 32940460, 65880920, 131761840]

約数ペア:

[(1, 131761840), (2, 65880920), (4, 32940460), (5, 26352368), (7, 18823120), (8, 16470230), (10, 13176184), (14, 9411560), (16, 8235115), (20, 6588092), (28, 4705780), (35, 3764624), (40, 3294046), (56, 2352890), (70, 1882312), (80, 1647023), (112, 1176445), (140, 941156), (280, 470578), (560, 235289)]