4160080

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 9765000

約数和(自身を除く): 5604920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 349, 596, 698, 745, 1192, 1396, 1490, 1745, 2384, 2792, 2980, 3490, 5584, 5960, 6980, 11920, 13960, 27920, 52001, 104002, 208004, 260005, 416008, 520010, 832016, 1040020, 2080040, 4160080]

約数ペア:

[(1, 4160080), (2, 2080040), (4, 1040020), (5, 832016), (8, 520010), (10, 416008), (16, 260005), (20, 208004), (40, 104002), (80, 52001), (149, 27920), (298, 13960), (349, 11920), (596, 6980), (698, 5960), (745, 5584), (1192, 3490), (1396, 2980), (1490, 2792), (1745, 2384)]