128294575

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{643}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 166739328

約数和(自身を除く): 38444753

約数列:

[1, 5, 23, 25, 115, 347, 575, 643, 1735, 3215, 7981, 8675, 14789, 16075, 39905, 73945, 199525, 223121, 369725, 1115605, 5131783, 5578025, 25658915, 128294575]

約数ペア:

[(1, 128294575), (5, 25658915), (23, 5578025), (25, 5131783), (115, 1115605), (347, 369725), (575, 223121), (643, 199525), (1735, 73945), (3215, 39905), (7981, 16075), (8675, 14789)]