19667140

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3739}}^1$

素因数の和:4011

約数の個数: 24

約数和(自身を含む): 41469120

約数和(自身を除く): 21801980

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3739, 5260, 7478, 14956, 18695, 37390, 74780, 983357, 1966714, 3933428, 4916785, 9833570, 19667140]

約数ペア:

[(1, 19667140), (2, 9833570), (4, 4916785), (5, 3933428), (10, 1966714), (20, 983357), (263, 74780), (526, 37390), (1052, 18695), (1315, 14956), (2630, 7478), (3739, 5260)]