129054320

素因数分解:

$2^4\times 5^1\times {\mathrm{1613179}}^1$

素因数の和:1613192

約数の個数: 20

約数和(自身を含む): 300051480

約数和(自身を除く): 170997160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1613179, 3226358, 6452716, 8065895, 12905432, 16131790, 25810864, 32263580, 64527160, 129054320]

約数ペア:

[(1, 129054320), (2, 64527160), (4, 32263580), (5, 25810864), (8, 16131790), (10, 12905432), (16, 8065895), (20, 6452716), (40, 3226358), (80, 1613179)]