40439390

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{40039}}^1$

素因数の和:40147

約数の個数: 16

約数和(自身を含む): 73513440

約数和(自身を除く): 33074050

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 40039, 80078, 200195, 400390, 4043939, 8087878, 20219695, 40439390]

約数ペア:

[(1, 40439390), (2, 20219695), (5, 8087878), (10, 4043939), (101, 400390), (202, 200195), (505, 80078), (1010, 40039)]