7800280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11471}}^1$

素因数の和:11499

約数の個数: 32

約数和(自身を含む): 18584640

約数和(自身を除く): 10784360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 11471, 22942, 45884, 57355, 91768, 114710, 195007, 229420, 390014, 458840, 780028, 975035, 1560056, 1950070, 3900140, 7800280]

約数ペア:

[(1, 7800280), (2, 3900140), (4, 1950070), (5, 1560056), (8, 975035), (10, 780028), (17, 458840), (20, 390014), (34, 229420), (40, 195007), (68, 114710), (85, 91768), (136, 57355), (170, 45884), (340, 22942), (680, 11471)]