164018560

素因数分解:

$2^7\times 5^1\times {\mathrm{256279}}^1$

素因数の和:256298

約数の個数: 32

約数和(自身を含む): 392108400

約数和(自身を除く): 228089840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 256279, 512558, 1025116, 1281395, 2050232, 2562790, 4100464, 5125580, 8200928, 10251160, 16401856, 20502320, 32803712, 41004640, 82009280, 164018560]

約数ペア:

[(1, 164018560), (2, 82009280), (4, 41004640), (5, 32803712), (8, 20502320), (10, 16401856), (16, 10251160), (20, 8200928), (32, 5125580), (40, 4100464), (64, 2562790), (80, 2050232), (128, 1281395), (160, 1025116), (320, 512558), (640, 256279)]