20456345

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44959}}^1$

素因数の和:44984

約数の個数: 16

約数和(自身を含む): 30213120

約数和(自身を除く): 9756775

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 44959, 224795, 314713, 584467, 1573565, 2922335, 4091269, 20456345]

約数ペア:

[(1, 20456345), (5, 4091269), (7, 2922335), (13, 1573565), (35, 584467), (65, 314713), (91, 224795), (455, 44959)]