208761215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1423}}^1$

素因数の和:1539

約数の個数: 32

約数和(自身を含む): 281815296

約数和(自身を除く): 73054081

約数列:

[1, 5, 13, 37, 61, 65, 185, 305, 481, 793, 1423, 2257, 2405, 3965, 7115, 11285, 18499, 29341, 52651, 86803, 92495, 146705, 263255, 434015, 684463, 1128439, 3211711, 3422315, 5642195, 16058555, 41752243, 208761215]

約数ペア:

[(1, 208761215), (5, 41752243), (13, 16058555), (37, 5642195), (61, 3422315), (65, 3211711), (185, 1128439), (305, 684463), (481, 434015), (793, 263255), (1423, 146705), (2257, 92495), (2405, 86803), (3965, 52651), (7115, 29341), (11285, 18499)]