128468752

素因数分解:

$2^4\times {\mathrm{419}}^1\times {\mathrm{19163}}^1$

素因数の和:19590

約数の個数: 20

約数和(自身を含む): 249515280

約数和(自身を除く): 121046528

約数列:

[1, 2, 4, 8, 16, 419, 838, 1676, 3352, 6704, 19163, 38326, 76652, 153304, 306608, 8029297, 16058594, 32117188, 64234376, 128468752]

約数ペア:

[(1, 128468752), (2, 64234376), (4, 32117188), (8, 16058594), (16, 8029297), (419, 306608), (838, 153304), (1676, 76652), (3352, 38326), (6704, 19163)]