25130780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20599}}^1$

素因数の和:20669

約数の個数: 24

約数和(自身を含む): 53642400

約数和(自身を除く): 28511620

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 20599, 41198, 82396, 102995, 205990, 411980, 1256539, 2513078, 5026156, 6282695, 12565390, 25130780]

約数ペア:

[(1, 25130780), (2, 12565390), (4, 6282695), (5, 5026156), (10, 2513078), (20, 1256539), (61, 411980), (122, 205990), (244, 102995), (305, 82396), (610, 41198), (1220, 20599)]