2912800120

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{165877}}^1$

素因数の和:166327

約数の個数: 32

約数和(自身を含む): 6568768800

約数和(自身を除く): 3655968680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 4390, 8780, 17560, 165877, 331754, 663508, 829385, 1327016, 1658770, 3317540, 6635080, 72820003, 145640006, 291280012, 364100015, 582560024, 728200030, 1456400060, 2912800120]

約数ペア:

[(1, 2912800120), (2, 1456400060), (4, 728200030), (5, 582560024), (8, 364100015), (10, 291280012), (20, 145640006), (40, 72820003), (439, 6635080), (878, 3317540), (1756, 1658770), (2195, 1327016), (3512, 829385), (4390, 663508), (8780, 331754), (17560, 165877)]