28488590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219143}}^1$

素因数の和:219163

約数の個数: 16

約数和(自身を含む): 55224288

約数和(自身を除く): 26735698

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 219143, 438286, 1095715, 2191430, 2848859, 5697718, 14244295, 28488590]

約数ペア:

[(1, 28488590), (2, 14244295), (5, 5697718), (10, 2848859), (13, 2191430), (26, 1095715), (65, 438286), (130, 219143)]