140994640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 337049856

約数和(自身を除く): 196055216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 103, 142, 206, 241, 284, 355, 412, 482, 515, 568, 710, 824, 964, 1030, 1136, 1205, 1420, 1648, 1928, 2060, 2410, 2840, 3856, 4120, 4820, 5680, 7313, 8240, 9640, 14626, 17111, 19280, 24823, 29252, 34222, 36565, 49646, 58504, 68444, 73130, 85555, 99292, 117008, 124115, 136888, 146260, 171110, 198584, 248230, 273776, 292520, 342220, 397168, 496460, 585040, 684440, 992920, 1368880, 1762433, 1985840, 3524866, 7049732, 8812165, 14099464, 17624330, 28198928, 35248660, 70497320, 140994640]

約数ペア:

[(1, 140994640), (2, 70497320), (4, 35248660), (5, 28198928), (8, 17624330), (10, 14099464), (16, 8812165), (20, 7049732), (40, 3524866), (71, 1985840), (80, 1762433), (103, 1368880), (142, 992920), (206, 684440), (241, 585040), (284, 496460), (355, 397168), (412, 342220), (482, 292520), (515, 273776), (568, 248230), (710, 198584), (824, 171110), (964, 146260), (1030, 136888), (1136, 124115), (1205, 117008), (1420, 99292), (1648, 85555), (1928, 73130), (2060, 68444), (2410, 58504), (2840, 49646), (3856, 36565), (4120, 34222), (4820, 29252), (5680, 24823), (7313, 19280), (8240, 17111), (9640, 14626)]