2608695

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2039

約数の個数: 24

約数和(自身を含む): 4680000

約数和(自身を除く): 2071305

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 1999, 5997, 9995, 17991, 29985, 57971, 89955, 173913, 289855, 521739, 869565, 2608695]

約数ペア:

[(1, 2608695), (3, 869565), (5, 521739), (9, 289855), (15, 173913), (29, 89955), (45, 57971), (87, 29985), (145, 17991), (261, 9995), (435, 5997), (1305, 1999)]