20808548720

素因数分解:

$2^4\times 5^1\times {\mathrm{260106859}}^1$

素因数の和:260106872

約数の個数: 20

約数和(自身を含む): 48379875960

約数和(自身を除く): 27571327240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260106859, 520213718, 1040427436, 1300534295, 2080854872, 2601068590, 4161709744, 5202137180, 10404274360, 20808548720]

約数ペア:

[(1, 20808548720), (2, 10404274360), (4, 5202137180), (5, 4161709744), (8, 2601068590), (10, 2080854872), (16, 1300534295), (20, 1040427436), (40, 520213718), (80, 260106859)]