28143865

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1021}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 34952400

約数和(自身を除く): 6808535

約数列:

[1, 5, 37, 149, 185, 745, 1021, 5105, 5513, 27565, 37777, 152129, 188885, 760645, 5628773, 28143865]

約数ペア:

[(1, 28143865), (5, 5628773), (37, 760645), (149, 188885), (185, 152129), (745, 37777), (1021, 27565), (5105, 5513)]