19474780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74903}}^1$

素因数の和:74925

約数の個数: 24

約数和(自身を含む): 44043552

約数和(自身を除く): 24568772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74903, 149806, 299612, 374515, 749030, 973739, 1498060, 1947478, 3894956, 4868695, 9737390, 19474780]

約数ペア:

[(1, 19474780), (2, 9737390), (4, 4868695), (5, 3894956), (10, 1947478), (13, 1498060), (20, 973739), (26, 749030), (52, 374515), (65, 299612), (130, 149806), (260, 74903)]