200080205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 266928480

約数和(自身を除く): 66848275

約数列:

[1, 5, 13, 41, 65, 193, 205, 389, 533, 965, 1945, 2509, 2665, 5057, 7913, 12545, 15949, 25285, 39565, 75077, 79745, 102869, 207337, 375385, 514345, 976001, 1036685, 3078157, 4880005, 15390785, 40016041, 200080205]

約数ペア:

[(1, 200080205), (5, 40016041), (13, 15390785), (41, 4880005), (65, 3078157), (193, 1036685), (205, 976001), (389, 514345), (533, 375385), (965, 207337), (1945, 102869), (2509, 79745), (2665, 75077), (5057, 39565), (7913, 25285), (12545, 15949)]