38688460

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{17747}}^1$

素因数の和:17865

約数の個数: 24

約数和(自身を含む): 81995760

約数和(自身を除く): 43307300

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 17747, 35494, 70988, 88735, 177470, 354940, 1934423, 3868846, 7737692, 9672115, 19344230, 38688460]

約数ペア:

[(1, 38688460), (2, 19344230), (4, 9672115), (5, 7737692), (10, 3868846), (20, 1934423), (109, 354940), (218, 177470), (436, 88735), (545, 70988), (1090, 35494), (2180, 17747)]