670640

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:197

約数の個数: 40

約数和(自身を含む): 1593648

約数和(自身を除く): 923008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 101, 166, 202, 332, 404, 415, 505, 664, 808, 830, 1010, 1328, 1616, 1660, 2020, 3320, 4040, 6640, 8080, 8383, 16766, 33532, 41915, 67064, 83830, 134128, 167660, 335320, 670640]

約数ペア:

[(1, 670640), (2, 335320), (4, 167660), (5, 134128), (8, 83830), (10, 67064), (16, 41915), (20, 33532), (40, 16766), (80, 8383), (83, 8080), (101, 6640), (166, 4040), (202, 3320), (332, 2020), (404, 1660), (415, 1616), (505, 1328), (664, 1010), (808, 830)]