81878112

素因数分解:

$2^5\times 3^2\times {\mathrm{107}}^1\times {\mathrm{2657}}^1$

素因数の和:2780

約数の個数: 72

約数和(自身を含む): 235105416

約数和(自身を除く): 153227304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 107, 144, 214, 288, 321, 428, 642, 856, 963, 1284, 1712, 1926, 2568, 2657, 3424, 3852, 5136, 5314, 7704, 7971, 10272, 10628, 15408, 15942, 21256, 23913, 30816, 31884, 42512, 47826, 63768, 85024, 95652, 127536, 191304, 255072, 284299, 382608, 568598, 765216, 852897, 1137196, 1705794, 2274392, 2558691, 3411588, 4548784, 5117382, 6823176, 9097568, 10234764, 13646352, 20469528, 27292704, 40939056, 81878112]

約数ペア:

[(1, 81878112), (2, 40939056), (3, 27292704), (4, 20469528), (6, 13646352), (8, 10234764), (9, 9097568), (12, 6823176), (16, 5117382), (18, 4548784), (24, 3411588), (32, 2558691), (36, 2274392), (48, 1705794), (72, 1137196), (96, 852897), (107, 765216), (144, 568598), (214, 382608), (288, 284299), (321, 255072), (428, 191304), (642, 127536), (856, 95652), (963, 85024), (1284, 63768), (1712, 47826), (1926, 42512), (2568, 31884), (2657, 30816), (3424, 23913), (3852, 21256), (5136, 15942), (5314, 15408), (7704, 10628), (7971, 10272)]