19738240

素因数分解:

$2^7\times 5^1\times {\mathrm{30841}}^1$

素因数の和:30860

約数の個数: 32

約数和(自身を含む): 47188260

約数和(自身を除く): 27450020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30841, 61682, 123364, 154205, 246728, 308410, 493456, 616820, 986912, 1233640, 1973824, 2467280, 3947648, 4934560, 9869120, 19738240]

約数ペア:

[(1, 19738240), (2, 9869120), (4, 4934560), (5, 3947648), (8, 2467280), (10, 1973824), (16, 1233640), (20, 986912), (32, 616820), (40, 493456), (64, 308410), (80, 246728), (128, 154205), (160, 123364), (320, 61682), (640, 30841)]