19812590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{739}}^1$

素因数の和:1136

約数の個数: 32

約数和(自身を含む): 40919040

約数和(自身を除く): 21106450

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 383, 739, 766, 1478, 1915, 2681, 3695, 3830, 5173, 5362, 7390, 10346, 13405, 25865, 26810, 51730, 283037, 566074, 1415185, 1981259, 2830370, 3962518, 9906295, 19812590]

約数ペア:

[(1, 19812590), (2, 9906295), (5, 3962518), (7, 2830370), (10, 1981259), (14, 1415185), (35, 566074), (70, 283037), (383, 51730), (739, 26810), (766, 25865), (1478, 13405), (1915, 10346), (2681, 7390), (3695, 5362), (3830, 5173)]