19450240

素因数分解:

$2^7\times 5^1\times {\mathrm{30391}}^1$

素因数の和:30410

約数の個数: 32

約数和(自身を含む): 46499760

約数和(自身を除く): 27049520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30391, 60782, 121564, 151955, 243128, 303910, 486256, 607820, 972512, 1215640, 1945024, 2431280, 3890048, 4862560, 9725120, 19450240]

約数ペア:

[(1, 19450240), (2, 9725120), (4, 4862560), (5, 3890048), (8, 2431280), (10, 1945024), (16, 1215640), (20, 972512), (32, 607820), (40, 486256), (64, 303910), (80, 243128), (128, 151955), (160, 121564), (320, 60782), (640, 30391)]