129394540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{2591}}^1$

素因数の和:2838

約数の個数: 48

約数和(自身を含む): 297851904

約数和(自身を除く): 168457364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 454, 908, 1135, 2270, 2497, 2591, 4540, 4994, 5182, 9988, 10364, 12485, 12955, 24970, 25910, 28501, 49940, 51820, 57002, 114004, 142505, 285010, 570020, 588157, 1176314, 2352628, 2940785, 5881570, 6469727, 11763140, 12939454, 25878908, 32348635, 64697270, 129394540]

約数ペア:

[(1, 129394540), (2, 64697270), (4, 32348635), (5, 25878908), (10, 12939454), (11, 11763140), (20, 6469727), (22, 5881570), (44, 2940785), (55, 2352628), (110, 1176314), (220, 588157), (227, 570020), (454, 285010), (908, 142505), (1135, 114004), (2270, 57002), (2497, 51820), (2591, 49940), (4540, 28501), (4994, 25910), (5182, 24970), (9988, 12955), (10364, 12485)]