28871275

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:411

約数の個数: 24

約数和(自身を含む): 37122624

約数和(自身を除く): 8251349

約数列:

[1, 5, 25, 43, 107, 215, 251, 535, 1075, 1255, 2675, 4601, 6275, 10793, 23005, 26857, 53965, 115025, 134285, 269825, 671425, 1154851, 5774255, 28871275]

約数ペア:

[(1, 28871275), (5, 5774255), (25, 1154851), (43, 671425), (107, 269825), (215, 134285), (251, 115025), (535, 53965), (1075, 26857), (1255, 23005), (2675, 10793), (4601, 6275)]