28142425

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 36533376

約数和(自身を除く): 8390951

約数列:

[1, 5, 25, 43, 47, 215, 235, 557, 1075, 1175, 2021, 2785, 10105, 13925, 23951, 26179, 50525, 119755, 130895, 598775, 654475, 1125697, 5628485, 28142425]

約数ペア:

[(1, 28142425), (5, 5628485), (25, 1125697), (43, 654475), (47, 598775), (215, 130895), (235, 119755), (557, 50525), (1075, 26179), (1175, 23951), (2021, 13925), (2785, 10105)]