205040009

素因数分解:

${\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 230176320

約数和(自身を除く): 25136311

約数列:

[1, 17, 23, 109, 283, 289, 391, 1853, 2507, 4811, 6509, 6647, 30847, 31501, 42619, 81787, 110653, 524399, 709481, 724523, 1881101, 8914783, 12061177, 205040009]

約数ペア:

[(1, 205040009), (17, 12061177), (23, 8914783), (109, 1881101), (283, 724523), (289, 709481), (391, 524399), (1853, 110653), (2507, 81787), (4811, 42619), (6509, 31501), (6647, 30847)]