16405120

素因数分解:

$2^7\times 5^1\times {\mathrm{25633}}^1$

素因数の和:25652

約数の個数: 32

約数和(自身を含む): 39220020

約数和(自身を除く): 22814900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 25633, 51266, 102532, 128165, 205064, 256330, 410128, 512660, 820256, 1025320, 1640512, 2050640, 3281024, 4101280, 8202560, 16405120]

約数ペア:

[(1, 16405120), (2, 8202560), (4, 4101280), (5, 3281024), (8, 2050640), (10, 1640512), (16, 1025320), (20, 820256), (32, 512660), (40, 410128), (64, 256330), (80, 205064), (128, 128165), (160, 102532), (320, 51266), (640, 25633)]