142758520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{209939}}^1$

素因数の和:209967

約数の個数: 32

約数和(自身を含む): 340102800

約数和(自身を除く): 197344280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 209939, 419878, 839756, 1049695, 1679512, 2099390, 3568963, 4198780, 7137926, 8397560, 14275852, 17844815, 28551704, 35689630, 71379260, 142758520]

約数ペア:

[(1, 142758520), (2, 71379260), (4, 35689630), (5, 28551704), (8, 17844815), (10, 14275852), (17, 8397560), (20, 7137926), (34, 4198780), (40, 3568963), (68, 2099390), (85, 1679512), (136, 1049695), (170, 839756), (340, 419878), (680, 209939)]