78426720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:637

約数の個数: 144

約数和(自身を含む): 270663120

約数和(自身を除く): 192236400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 107, 120, 144, 160, 180, 214, 240, 288, 321, 360, 428, 480, 509, 535, 642, 720, 856, 963, 1018, 1070, 1284, 1440, 1527, 1605, 1712, 1926, 2036, 2140, 2545, 2568, 3054, 3210, 3424, 3852, 4072, 4280, 4581, 4815, 5090, 5136, 6108, 6420, 7635, 7704, 8144, 8560, 9162, 9630, 10180, 10272, 12216, 12840, 15270, 15408, 16288, 17120, 18324, 19260, 20360, 22905, 24432, 25680, 30540, 30816, 36648, 38520, 40720, 45810, 48864, 51360, 54463, 61080, 73296, 77040, 81440, 91620, 108926, 122160, 146592, 154080, 163389, 183240, 217852, 244320, 272315, 326778, 366480, 435704, 490167, 544630, 653556, 732960, 816945, 871408, 980334, 1089260, 1307112, 1633890, 1742816, 1960668, 2178520, 2450835, 2614224, 3267780, 3921336, 4357040, 4901670, 5228448, 6535560, 7842672, 8714080, 9803340, 13071120, 15685344, 19606680, 26142240, 39213360, 78426720]

約数ペア:

[(1, 78426720), (2, 39213360), (3, 26142240), (4, 19606680), (5, 15685344), (6, 13071120), (8, 9803340), (9, 8714080), (10, 7842672), (12, 6535560), (15, 5228448), (16, 4901670), (18, 4357040), (20, 3921336), (24, 3267780), (30, 2614224), (32, 2450835), (36, 2178520), (40, 1960668), (45, 1742816), (48, 1633890), (60, 1307112), (72, 1089260), (80, 980334), (90, 871408), (96, 816945), (107, 732960), (120, 653556), (144, 544630), (160, 490167), (180, 435704), (214, 366480), (240, 326778), (288, 272315), (321, 244320), (360, 217852), (428, 183240), (480, 163389), (509, 154080), (535, 146592), (642, 122160), (720, 108926), (856, 91620), (963, 81440), (1018, 77040), (1070, 73296), (1284, 61080), (1440, 54463), (1527, 51360), (1605, 48864), (1712, 45810), (1926, 40720), (2036, 38520), (2140, 36648), (2545, 30816), (2568, 30540), (3054, 25680), (3210, 24432), (3424, 22905), (3852, 20360), (4072, 19260), (4280, 18324), (4581, 17120), (4815, 16288), (5090, 15408), (5136, 15270), (6108, 12840), (6420, 12216), (7635, 10272), (7704, 10180), (8144, 9630), (8560, 9162)]