2140325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 2978976

約数和(自身を除く): 838651

約数列:

[1, 5, 11, 25, 43, 55, 181, 215, 275, 473, 905, 1075, 1991, 2365, 4525, 7783, 9955, 11825, 38915, 49775, 85613, 194575, 428065, 2140325]

約数ペア:

[(1, 2140325), (5, 428065), (11, 194575), (25, 85613), (43, 49775), (55, 38915), (181, 11825), (215, 9955), (275, 7783), (473, 4525), (905, 2365), (1075, 1991)]