68501560

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 91165640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 83, 94, 166, 188, 235, 332, 376, 415, 439, 470, 664, 830, 878, 940, 1660, 1756, 1880, 2195, 3320, 3512, 3901, 4390, 7802, 8780, 15604, 17560, 19505, 20633, 31208, 36437, 39010, 41266, 72874, 78020, 82532, 103165, 145748, 156040, 165064, 182185, 206330, 291496, 364370, 412660, 728740, 825320, 1457480, 1712539, 3425078, 6850156, 8562695, 13700312, 17125390, 34250780, 68501560]

約数ペア:

[(1, 68501560), (2, 34250780), (4, 17125390), (5, 13700312), (8, 8562695), (10, 6850156), (20, 3425078), (40, 1712539), (47, 1457480), (83, 825320), (94, 728740), (166, 412660), (188, 364370), (235, 291496), (332, 206330), (376, 182185), (415, 165064), (439, 156040), (470, 145748), (664, 103165), (830, 82532), (878, 78020), (940, 72874), (1660, 41266), (1756, 39010), (1880, 36437), (2195, 31208), (3320, 20633), (3512, 19505), (3901, 17560), (4390, 15604), (7802, 8780)]