129561580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1907}}^1$

素因数の和:2038

約数の個数: 48

約数和(自身を含む): 282078720

約数和(自身を除く): 152517140

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 790, 860, 1580, 1907, 3397, 3814, 6794, 7628, 9535, 13588, 16985, 19070, 33970, 38140, 67940, 82001, 150653, 164002, 301306, 328004, 410005, 602612, 753265, 820010, 1506530, 1640020, 3013060, 6478079, 12956158, 25912316, 32390395, 64780790, 129561580]

約数ペア:

[(1, 129561580), (2, 64780790), (4, 32390395), (5, 25912316), (10, 12956158), (20, 6478079), (43, 3013060), (79, 1640020), (86, 1506530), (158, 820010), (172, 753265), (215, 602612), (316, 410005), (395, 328004), (430, 301306), (790, 164002), (860, 150653), (1580, 82001), (1907, 67940), (3397, 38140), (3814, 33970), (6794, 19070), (7628, 16985), (9535, 13588)]