19458260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{193}}^1$

素因数の和:344

約数の個数: 36

約数和(自身を含む): 41660724

約数和(自身を除く): 22202464

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 193, 284, 355, 386, 710, 772, 965, 1420, 1930, 3860, 5041, 10082, 13703, 20164, 25205, 27406, 50410, 54812, 68515, 100820, 137030, 274060, 972913, 1945826, 3891652, 4864565, 9729130, 19458260]

約数ペア:

[(1, 19458260), (2, 9729130), (4, 4864565), (5, 3891652), (10, 1945826), (20, 972913), (71, 274060), (142, 137030), (193, 100820), (284, 68515), (355, 54812), (386, 50410), (710, 27406), (772, 25205), (965, 20164), (1420, 13703), (1930, 10082), (3860, 5041)]