25419820

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{13103}}^1$

素因数の和:13209

約数の個数: 24

約数和(自身を含む): 53936064

約数和(自身を除く): 28516244

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 13103, 26206, 52412, 65515, 131030, 262060, 1270991, 2541982, 5083964, 6354955, 12709910, 25419820]

約数ペア:

[(1, 25419820), (2, 12709910), (4, 6354955), (5, 5083964), (10, 2541982), (20, 1270991), (97, 262060), (194, 131030), (388, 65515), (485, 52412), (970, 26206), (1940, 13103)]