64881760

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:276

約数の個数: 96

約数和(自身を含む): 161021952

約数和(自身を除く): 96140192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 103, 124, 127, 155, 160, 206, 248, 254, 310, 412, 496, 508, 515, 620, 635, 824, 992, 1016, 1030, 1240, 1270, 1648, 2032, 2060, 2480, 2540, 3193, 3296, 3937, 4064, 4120, 4960, 5080, 6386, 7874, 8240, 10160, 12772, 13081, 15748, 15965, 16480, 19685, 20320, 25544, 26162, 31496, 31930, 39370, 51088, 52324, 62992, 63860, 65405, 78740, 102176, 104648, 125984, 127720, 130810, 157480, 209296, 255440, 261620, 314960, 405511, 418592, 510880, 523240, 629920, 811022, 1046480, 1622044, 2027555, 2092960, 3244088, 4055110, 6488176, 8110220, 12976352, 16220440, 32440880, 64881760]

約数ペア:

[(1, 64881760), (2, 32440880), (4, 16220440), (5, 12976352), (8, 8110220), (10, 6488176), (16, 4055110), (20, 3244088), (31, 2092960), (32, 2027555), (40, 1622044), (62, 1046480), (80, 811022), (103, 629920), (124, 523240), (127, 510880), (155, 418592), (160, 405511), (206, 314960), (248, 261620), (254, 255440), (310, 209296), (412, 157480), (496, 130810), (508, 127720), (515, 125984), (620, 104648), (635, 102176), (824, 78740), (992, 65405), (1016, 63860), (1030, 62992), (1240, 52324), (1270, 51088), (1648, 39370), (2032, 31930), (2060, 31496), (2480, 26162), (2540, 25544), (3193, 20320), (3296, 19685), (3937, 16480), (4064, 15965), (4120, 15748), (4960, 13081), (5080, 12772), (6386, 10160), (7874, 8240)]