1408220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 3332448

約数和(自身を除く): 1924228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 173, 185, 220, 346, 370, 407, 692, 740, 814, 865, 1628, 1730, 1903, 2035, 3460, 3806, 4070, 6401, 7612, 8140, 9515, 12802, 19030, 25604, 32005, 38060, 64010, 70411, 128020, 140822, 281644, 352055, 704110, 1408220]

約数ペア:

[(1, 1408220), (2, 704110), (4, 352055), (5, 281644), (10, 140822), (11, 128020), (20, 70411), (22, 64010), (37, 38060), (44, 32005), (55, 25604), (74, 19030), (110, 12802), (148, 9515), (173, 8140), (185, 7612), (220, 6401), (346, 4070), (370, 3806), (407, 3460), (692, 2035), (740, 1903), (814, 1730), (865, 1628)]