25480240

素因数分解:

$2^4\times 5^1\times {\mathrm{318503}}^1$

素因数の和:318516

約数の個数: 20

約数和(自身を含む): 59241744

約数和(自身を除く): 33761504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 318503, 637006, 1274012, 1592515, 2548024, 3185030, 5096048, 6370060, 12740120, 25480240]

約数ペア:

[(1, 25480240), (2, 12740120), (4, 6370060), (5, 5096048), (8, 3185030), (10, 2548024), (16, 1592515), (20, 1274012), (40, 637006), (80, 318503)]