258405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:145

約数の個数: 32

約数和(自身を含む): 497664

約数和(自身を除く): 239259

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 107, 115, 161, 321, 345, 483, 535, 749, 805, 1605, 2247, 2415, 2461, 3745, 7383, 11235, 12305, 17227, 36915, 51681, 86135, 258405]

約数ペア:

[(1, 258405), (3, 86135), (5, 51681), (7, 36915), (15, 17227), (21, 12305), (23, 11235), (35, 7383), (69, 3745), (105, 2461), (107, 2415), (115, 2247), (161, 1605), (321, 805), (345, 749), (483, 535)]