2620915580

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{665207}}^1$

素因数の和:665413

約数の個数: 24

約数和(自身を含む): 5531869728

約数和(自身を除く): 2910954148

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 665207, 1330414, 2660828, 3326035, 6652070, 13304140, 131045779, 262091558, 524183116, 655228895, 1310457790, 2620915580]

約数ペア:

[(1, 2620915580), (2, 1310457790), (4, 655228895), (5, 524183116), (10, 262091558), (20, 131045779), (197, 13304140), (394, 6652070), (788, 3326035), (985, 2660828), (1970, 1330414), (3940, 665207)]