20103395

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:711

約数の個数: 24

約数和(自身を含む): 26870256

約数和(自身を除く): 6766861

約数列:

[1, 5, 13, 37, 65, 169, 185, 481, 643, 845, 2405, 3215, 6253, 8359, 23791, 31265, 41795, 108667, 118955, 309283, 543335, 1546415, 4020679, 20103395]

約数ペア:

[(1, 20103395), (5, 4020679), (13, 1546415), (37, 543335), (65, 309283), (169, 118955), (185, 108667), (481, 41795), (643, 31265), (845, 23791), (2405, 8359), (3215, 6253)]