67992020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{31189}}^1$

素因数の和:31307

約数の個数: 24

約数和(自身を含む): 144097800

約数和(自身を除く): 76105780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 31189, 62378, 124756, 155945, 311890, 623780, 3399601, 6799202, 13598404, 16998005, 33996010, 67992020]

約数ペア:

[(1, 67992020), (2, 33996010), (4, 16998005), (5, 13598404), (10, 6799202), (20, 3399601), (109, 623780), (218, 311890), (436, 155945), (545, 124756), (1090, 62378), (2180, 31189)]