208023560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{305917}}^1$

素因数の和:305945

約数の個数: 32

約数和(自身を含む): 495587160

約数和(自身を除く): 287563600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 305917, 611834, 1223668, 1529585, 2447336, 3059170, 5200589, 6118340, 10401178, 12236680, 20802356, 26002945, 41604712, 52005890, 104011780, 208023560]

約数ペア:

[(1, 208023560), (2, 104011780), (4, 52005890), (5, 41604712), (8, 26002945), (10, 20802356), (17, 12236680), (20, 10401178), (34, 6118340), (40, 5200589), (68, 3059170), (85, 2447336), (136, 1529585), (170, 1223668), (340, 611834), (680, 305917)]