19994560

素因数分解:

$2^6\times 5^1\times {\mathrm{62483}}^1$

素因数の和:62500

約数の個数: 28

約数和(自身を含む): 47612808

約数和(自身を除く): 27618248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 62483, 124966, 249932, 312415, 499864, 624830, 999728, 1249660, 1999456, 2499320, 3998912, 4998640, 9997280, 19994560]

約数ペア:

[(1, 19994560), (2, 9997280), (4, 4998640), (5, 3998912), (8, 2499320), (10, 1999456), (16, 1249660), (20, 999728), (32, 624830), (40, 499864), (64, 312415), (80, 249932), (160, 124966), (320, 62483)]