81255265

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1669}}^1$

素因数の和:1801

約数の個数: 32

約数和(自身を含む): 121201920

約数和(自身を除く): 39946655

約数列:

[1, 5, 7, 13, 35, 65, 91, 107, 455, 535, 749, 1391, 1669, 3745, 6955, 8345, 9737, 11683, 21697, 48685, 58415, 108485, 151879, 178583, 759395, 892915, 1250081, 2321579, 6250405, 11607895, 16251053, 81255265]

約数ペア:

[(1, 81255265), (5, 16251053), (7, 11607895), (13, 6250405), (35, 2321579), (65, 1250081), (91, 892915), (107, 759395), (455, 178583), (535, 151879), (749, 108485), (1391, 58415), (1669, 48685), (3745, 21697), (6955, 11683), (8345, 9737)]