827657980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{23473}}^1$

素因数の和:23566

約数の個数: 48

約数和(自身を含む): 1821957984

約数和(自身を除く): 994300004

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 3526, 7052, 8815, 17630, 23473, 35260, 46946, 93892, 117365, 234730, 469460, 962393, 1009339, 1924786, 2018678, 3849572, 4037356, 4811965, 5046695, 9623930, 10093390, 19247860, 20186780, 41382899, 82765798, 165531596, 206914495, 413828990, 827657980]

約数ペア:

[(1, 827657980), (2, 413828990), (4, 206914495), (5, 165531596), (10, 82765798), (20, 41382899), (41, 20186780), (43, 19247860), (82, 10093390), (86, 9623930), (164, 5046695), (172, 4811965), (205, 4037356), (215, 3849572), (410, 2018678), (430, 1924786), (820, 1009339), (860, 962393), (1763, 469460), (3526, 234730), (7052, 117365), (8815, 93892), (17630, 46946), (23473, 35260)]