80940475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2213}}^1$

素因数の和:2260

約数の個数: 48

約数和(自身を含む): 131777280

約数和(自身を除く): 50836805

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 133, 175, 209, 275, 385, 475, 665, 1045, 1463, 1925, 2213, 3325, 5225, 7315, 11065, 15491, 24343, 36575, 42047, 55325, 77455, 121715, 170401, 210235, 294329, 387275, 462517, 608575, 852005, 1051175, 1471645, 2312585, 3237619, 4260025, 7358225, 11562925, 16188095, 80940475]

約数ペア:

[(1, 80940475), (5, 16188095), (7, 11562925), (11, 7358225), (19, 4260025), (25, 3237619), (35, 2312585), (55, 1471645), (77, 1051175), (95, 852005), (133, 608575), (175, 462517), (209, 387275), (275, 294329), (385, 210235), (475, 170401), (665, 121715), (1045, 77455), (1463, 55325), (1925, 42047), (2213, 36575), (3325, 24343), (5225, 15491), (7315, 11065)]