19680216

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 31468584

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 73, 94, 141, 146, 188, 219, 239, 282, 292, 376, 438, 478, 564, 584, 717, 876, 956, 1128, 1434, 1752, 1912, 2868, 3431, 5736, 6862, 10293, 11233, 13724, 17447, 20586, 22466, 27448, 33699, 34894, 41172, 44932, 52341, 67398, 69788, 82344, 89864, 104682, 134796, 139576, 209364, 269592, 418728, 820009, 1640018, 2460027, 3280036, 4920054, 6560072, 9840108, 19680216]

約数ペア:

[(1, 19680216), (2, 9840108), (3, 6560072), (4, 4920054), (6, 3280036), (8, 2460027), (12, 1640018), (24, 820009), (47, 418728), (73, 269592), (94, 209364), (141, 139576), (146, 134796), (188, 104682), (219, 89864), (239, 82344), (282, 69788), (292, 67398), (376, 52341), (438, 44932), (478, 41172), (564, 34894), (584, 33699), (717, 27448), (876, 22466), (956, 20586), (1128, 17447), (1434, 13724), (1752, 11233), (1912, 10293), (2868, 6862), (3431, 5736)]