20165978368

素因数分解:

$2^8\times {\mathrm{661}}^1\times {\mathrm{119173}}^1$

素因数の和:119850

約数の個数: 36

約数和(自身を含む): 40314419068

約数和(自身を除く): 20148440700

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 661, 1322, 2644, 5288, 10576, 21152, 42304, 84608, 119173, 169216, 238346, 476692, 953384, 1906768, 3813536, 7627072, 15254144, 30508288, 78773353, 157546706, 315093412, 630186824, 1260373648, 2520747296, 5041494592, 10082989184, 20165978368]

約数ペア:

[(1, 20165978368), (2, 10082989184), (4, 5041494592), (8, 2520747296), (16, 1260373648), (32, 630186824), (64, 315093412), (128, 157546706), (256, 78773353), (661, 30508288), (1322, 15254144), (2644, 7627072), (5288, 3813536), (10576, 1906768), (21152, 953384), (42304, 476692), (84608, 238346), (119173, 169216)]