19782984

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 53726400

約数和(自身を除く): 33943416

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 163, 312, 326, 389, 489, 652, 778, 978, 1167, 1304, 1556, 1956, 2119, 2334, 3112, 3912, 4238, 4668, 5057, 6357, 8476, 9336, 10114, 12714, 15171, 16952, 20228, 25428, 30342, 40456, 50856, 60684, 63407, 121368, 126814, 190221, 253628, 380442, 507256, 760884, 824291, 1521768, 1648582, 2472873, 3297164, 4945746, 6594328, 9891492, 19782984]

約数ペア:

[(1, 19782984), (2, 9891492), (3, 6594328), (4, 4945746), (6, 3297164), (8, 2472873), (12, 1648582), (13, 1521768), (24, 824291), (26, 760884), (39, 507256), (52, 380442), (78, 253628), (104, 190221), (156, 126814), (163, 121368), (312, 63407), (326, 60684), (389, 50856), (489, 40456), (652, 30342), (778, 25428), (978, 20228), (1167, 16952), (1304, 15171), (1556, 12714), (1956, 10114), (2119, 9336), (2334, 8476), (3112, 6357), (3912, 5057), (4238, 4668)]