209533820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1\times {\mathrm{547}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 447431040

約数和(自身を除く): 237897220

約数列:

[1, 2, 4, 5, 10, 20, 107, 179, 214, 358, 428, 535, 547, 716, 895, 1070, 1094, 1790, 2140, 2188, 2735, 3580, 5470, 10940, 19153, 38306, 58529, 76612, 95765, 97913, 117058, 191530, 195826, 234116, 292645, 383060, 391652, 489565, 585290, 979130, 1170580, 1958260, 10476691, 20953382, 41906764, 52383455, 104766910, 209533820]

約数ペア:

[(1, 209533820), (2, 104766910), (4, 52383455), (5, 41906764), (10, 20953382), (20, 10476691), (107, 1958260), (179, 1170580), (214, 979130), (358, 585290), (428, 489565), (535, 391652), (547, 383060), (716, 292645), (895, 234116), (1070, 195826), (1094, 191530), (1790, 117058), (2140, 97913), (2188, 95765), (2735, 76612), (3580, 58529), (5470, 38306), (10940, 19153)]