128895020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{379103}}^1$

素因数の和:379129

約数の個数: 24

約数和(自身を含む): 286602624

約数和(自身を除く): 157707604

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 379103, 758206, 1516412, 1895515, 3791030, 6444751, 7582060, 12889502, 25779004, 32223755, 64447510, 128895020]

約数ペア:

[(1, 128895020), (2, 64447510), (4, 32223755), (5, 25779004), (10, 12889502), (17, 7582060), (20, 6444751), (34, 3791030), (68, 1895515), (85, 1516412), (170, 758206), (340, 379103)]