8218240

素因数分解:

$2^7\times 5^1\times {\mathrm{12841}}^1$

素因数の和:12860

約数の個数: 32

約数和(自身を含む): 19648260

約数和(自身を除く): 11430020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 12841, 25682, 51364, 64205, 102728, 128410, 205456, 256820, 410912, 513640, 821824, 1027280, 1643648, 2054560, 4109120, 8218240]

約数ペア:

[(1, 8218240), (2, 4109120), (4, 2054560), (5, 1643648), (8, 1027280), (10, 821824), (16, 513640), (20, 410912), (32, 256820), (40, 205456), (64, 128410), (80, 102728), (128, 64205), (160, 51364), (320, 25682), (640, 12841)]