20305945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{439}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 27593280

約数和(自身を除く): 7287335

約数列:

[1, 5, 11, 29, 55, 145, 319, 439, 841, 1595, 2195, 4205, 4829, 9251, 12731, 24145, 46255, 63655, 140041, 369199, 700205, 1845995, 4061189, 20305945]

約数ペア:

[(1, 20305945), (5, 4061189), (11, 1845995), (29, 700205), (55, 369199), (145, 140041), (319, 63655), (439, 46255), (841, 24145), (1595, 12731), (2195, 9251), (4205, 4829)]