20020991998

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{3119}}^1$

素因数の和:3433

約数の個数: 64

約数和(自身を含む): 36003502080

約数和(自身を除く): 15982510082

約数列:

[1, 2, 7, 14, 41, 53, 82, 106, 211, 287, 371, 422, 574, 742, 1477, 2173, 2954, 3119, 4346, 6238, 8651, 11183, 15211, 17302, 21833, 22366, 30422, 43666, 60557, 78281, 121114, 127879, 156562, 165307, 255758, 330614, 458503, 658109, 895153, 917006, 1157149, 1316218, 1790306, 2314298, 3209521, 4606763, 6419042, 6777587, 9213526, 13555174, 26982469, 34879777, 47443109, 53964938, 69759554, 94886218, 188877283, 244158439, 377754566, 488316878, 1430070857, 2860141714, 10010495999, 20020991998]

約数ペア:

[(1, 20020991998), (2, 10010495999), (7, 2860141714), (14, 1430070857), (41, 488316878), (53, 377754566), (82, 244158439), (106, 188877283), (211, 94886218), (287, 69759554), (371, 53964938), (422, 47443109), (574, 34879777), (742, 26982469), (1477, 13555174), (2173, 9213526), (2954, 6777587), (3119, 6419042), (4346, 4606763), (6238, 3209521), (8651, 2314298), (11183, 1790306), (15211, 1316218), (17302, 1157149), (21833, 917006), (22366, 895153), (30422, 658109), (43666, 458503), (60557, 330614), (78281, 255758), (121114, 165307), (127879, 156562)]