25909780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 58988160

約数和(自身を除く): 33078380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 227, 260, 439, 454, 878, 908, 1135, 1756, 2195, 2270, 2951, 4390, 4540, 5707, 5902, 8780, 11414, 11804, 14755, 22828, 28535, 29510, 57070, 59020, 99653, 114140, 199306, 398612, 498265, 996530, 1295489, 1993060, 2590978, 5181956, 6477445, 12954890, 25909780]

約数ペア:

[(1, 25909780), (2, 12954890), (4, 6477445), (5, 5181956), (10, 2590978), (13, 1993060), (20, 1295489), (26, 996530), (52, 498265), (65, 398612), (130, 199306), (227, 114140), (260, 99653), (439, 59020), (454, 57070), (878, 29510), (908, 28535), (1135, 22828), (1756, 14755), (2195, 11804), (2270, 11414), (2951, 8780), (4390, 5902), (4540, 5707)]