91018780

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{10273}}^1$

素因数の和:10725

約数の個数: 24

約数和(自身を含む): 191589552

約数和(自身を除く): 100570772

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 4430, 8860, 10273, 20546, 41092, 51365, 102730, 205460, 4550939, 9101878, 18203756, 22754695, 45509390, 91018780]

約数ペア:

[(1, 91018780), (2, 45509390), (4, 22754695), (5, 18203756), (10, 9101878), (20, 4550939), (443, 205460), (886, 102730), (1772, 51365), (2215, 41092), (4430, 20546), (8860, 10273)]