65642260

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{4057}}^1$

素因数の和:4875

約数の個数: 24

約数和(自身を含む): 138053160

約数和(自身を除く): 72410900

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 4057, 8090, 8114, 16180, 16228, 20285, 40570, 81140, 3282113, 6564226, 13128452, 16410565, 32821130, 65642260]

約数ペア:

[(1, 65642260), (2, 32821130), (4, 16410565), (5, 13128452), (10, 6564226), (20, 3282113), (809, 81140), (1618, 40570), (3236, 20285), (4045, 16228), (4057, 16180), (8090, 8114)]