20372645

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{1289}}^1$

素因数の和:1432

約数の個数: 16

約数和(自身を含む): 25542000

約数和(自身を除く): 5169355

約数列:

[1, 5, 29, 109, 145, 545, 1289, 3161, 6445, 15805, 37381, 140501, 186905, 702505, 4074529, 20372645]

約数ペア:

[(1, 20372645), (5, 4074529), (29, 702505), (109, 186905), (145, 140501), (545, 37381), (1289, 15805), (3161, 6445)]