289589985

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42061}}^1$

素因数の和:42095

約数の個数: 40

約数和(自身を含む): 549666216

約数和(自身を除く): 260076231

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 6885, 42061, 126183, 210305, 378549, 630915, 715037, 1135647, 1892745, 2145111, 3406941, 3575185, 5678235, 6435333, 10725555, 17034705, 19305999, 32176665, 57917997, 96529995, 289589985]

約数ペア:

[(1, 289589985), (3, 96529995), (5, 57917997), (9, 32176665), (15, 19305999), (17, 17034705), (27, 10725555), (45, 6435333), (51, 5678235), (81, 3575185), (85, 3406941), (135, 2145111), (153, 1892745), (255, 1135647), (405, 715037), (459, 630915), (765, 378549), (1377, 210305), (2295, 126183), (6885, 42061)]