66842020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2141}}^1$

素因数の和:2380

約数の個数: 48

約数和(自身を含む): 161215488

約数和(自身を除く): 94373468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1561, 2141, 2230, 3122, 4282, 4460, 6244, 7805, 8564, 10705, 14987, 15610, 21410, 29974, 31220, 42820, 59948, 74935, 149870, 299740, 477443, 954886, 1909772, 2387215, 3342101, 4774430, 6684202, 9548860, 13368404, 16710505, 33421010, 66842020]

約数ペア:

[(1, 66842020), (2, 33421010), (4, 16710505), (5, 13368404), (7, 9548860), (10, 6684202), (14, 4774430), (20, 3342101), (28, 2387215), (35, 1909772), (70, 954886), (140, 477443), (223, 299740), (446, 149870), (892, 74935), (1115, 59948), (1561, 42820), (2141, 31220), (2230, 29974), (3122, 21410), (4282, 15610), (4460, 14987), (6244, 10705), (7805, 8564)]