64746640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:309

約数の個数: 120

約数和(自身を含む): 178113600

約数和(自身を除く): 113366960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 83, 98, 112, 140, 166, 196, 199, 245, 280, 332, 392, 398, 415, 490, 560, 581, 664, 784, 796, 830, 980, 995, 1162, 1328, 1393, 1592, 1660, 1960, 1990, 2324, 2786, 2905, 3184, 3320, 3920, 3980, 4067, 4648, 5572, 5810, 6640, 6965, 7960, 8134, 9296, 9751, 11144, 11620, 13930, 15920, 16268, 16517, 19502, 20335, 22288, 23240, 27860, 32536, 33034, 39004, 40670, 46480, 48755, 55720, 65072, 66068, 78008, 81340, 82585, 97510, 111440, 115619, 132136, 156016, 162680, 165170, 195020, 231238, 264272, 325360, 330340, 390040, 462476, 578095, 660680, 780080, 809333, 924952, 1156190, 1321360, 1618666, 1849904, 2312380, 3237332, 4046665, 4624760, 6474664, 8093330, 9249520, 12949328, 16186660, 32373320, 64746640]

約数ペア:

[(1, 64746640), (2, 32373320), (4, 16186660), (5, 12949328), (7, 9249520), (8, 8093330), (10, 6474664), (14, 4624760), (16, 4046665), (20, 3237332), (28, 2312380), (35, 1849904), (40, 1618666), (49, 1321360), (56, 1156190), (70, 924952), (80, 809333), (83, 780080), (98, 660680), (112, 578095), (140, 462476), (166, 390040), (196, 330340), (199, 325360), (245, 264272), (280, 231238), (332, 195020), (392, 165170), (398, 162680), (415, 156016), (490, 132136), (560, 115619), (581, 111440), (664, 97510), (784, 82585), (796, 81340), (830, 78008), (980, 66068), (995, 65072), (1162, 55720), (1328, 48755), (1393, 46480), (1592, 40670), (1660, 39004), (1960, 33034), (1990, 32536), (2324, 27860), (2786, 23240), (2905, 22288), (3184, 20335), (3320, 19502), (3920, 16517), (3980, 16268), (4067, 15920), (4648, 13930), (5572, 11620), (5810, 11144), (6640, 9751), (6965, 9296), (7960, 8134)]