291218920

素因数分解:

$2^3\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{6661}}^1$

素因数の和:7765

約数の個数: 32

約数和(自身を含む): 655940520

約数和(自身を除く): 364721600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1093, 2186, 4372, 5465, 6661, 8744, 10930, 13322, 21860, 26644, 33305, 43720, 53288, 66610, 133220, 266440, 7280473, 14560946, 29121892, 36402365, 58243784, 72804730, 145609460, 291218920]

約数ペア:

[(1, 291218920), (2, 145609460), (4, 72804730), (5, 58243784), (8, 36402365), (10, 29121892), (20, 14560946), (40, 7280473), (1093, 266440), (2186, 133220), (4372, 66610), (5465, 53288), (6661, 43720), (8744, 33305), (10930, 26644), (13322, 21860)]