639795

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 1173312

約数和(自身を除く): 533517

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 193, 195, 221, 255, 579, 663, 965, 1105, 2509, 2895, 3281, 3315, 7527, 9843, 12545, 16405, 37635, 42653, 49215, 127959, 213265, 639795]

約数ペア:

[(1, 639795), (3, 213265), (5, 127959), (13, 49215), (15, 42653), (17, 37635), (39, 16405), (51, 12545), (65, 9843), (85, 7527), (193, 3315), (195, 3281), (221, 2895), (255, 2509), (579, 1105), (663, 965)]