28004795

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1009}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 42080640

約数和(自身を除く): 14075845

約数列:

[1, 5, 7, 13, 35, 61, 65, 91, 305, 427, 455, 793, 1009, 2135, 3965, 5045, 5551, 7063, 13117, 27755, 35315, 61549, 65585, 91819, 307745, 430843, 459095, 800137, 2154215, 4000685, 5600959, 28004795]

約数ペア:

[(1, 28004795), (5, 5600959), (7, 4000685), (13, 2154215), (35, 800137), (61, 459095), (65, 430843), (91, 307745), (305, 91819), (427, 65585), (455, 61549), (793, 35315), (1009, 27755), (2135, 13117), (3965, 7063), (5045, 5551)]