20850755

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 28159488

約数和(自身を除く): 7308733

約数列:

[1, 5, 17, 31, 41, 85, 155, 193, 205, 527, 697, 965, 1271, 2635, 3281, 3485, 5983, 6355, 7913, 16405, 21607, 29915, 39565, 101711, 108035, 134521, 245303, 508555, 672605, 1226515, 4170151, 20850755]

約数ペア:

[(1, 20850755), (5, 4170151), (17, 1226515), (31, 672605), (41, 508555), (85, 245303), (155, 134521), (193, 108035), (205, 101711), (527, 39565), (697, 29915), (965, 21607), (1271, 16405), (2635, 7913), (3281, 6355), (3485, 5983)]