201619990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{509}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 428742720

約数和(自身を除く): 227122730

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 277, 286, 509, 554, 715, 1018, 1385, 1430, 2545, 2770, 3047, 3601, 5090, 5599, 6094, 6617, 7202, 11198, 13234, 15235, 18005, 27995, 30470, 33085, 36010, 39611, 55990, 66170, 72787, 79222, 140993, 145574, 198055, 281986, 363935, 396110, 704965, 727870, 1409930, 1550923, 1832909, 3101846, 3665818, 7754615, 9164545, 15509230, 18329090, 20161999, 40323998, 100809995, 201619990]

約数ペア:

[(1, 201619990), (2, 100809995), (5, 40323998), (10, 20161999), (11, 18329090), (13, 15509230), (22, 9164545), (26, 7754615), (55, 3665818), (65, 3101846), (110, 1832909), (130, 1550923), (143, 1409930), (277, 727870), (286, 704965), (509, 396110), (554, 363935), (715, 281986), (1018, 198055), (1385, 145574), (1430, 140993), (2545, 79222), (2770, 72787), (3047, 66170), (3601, 55990), (5090, 39611), (5599, 36010), (6094, 33085), (6617, 30470), (7202, 27995), (11198, 18005), (13234, 15235)]