25393300

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1289}}^1$

素因数の和:1500

約数の個数: 36

約数和(自身を含む): 55426140

約数和(自身を除く): 30032840

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1289, 1970, 2578, 3940, 4925, 5156, 6445, 9850, 12890, 19700, 25780, 32225, 64450, 128900, 253933, 507866, 1015732, 1269665, 2539330, 5078660, 6348325, 12696650, 25393300]

約数ペア:

[(1, 25393300), (2, 12696650), (4, 6348325), (5, 5078660), (10, 2539330), (20, 1269665), (25, 1015732), (50, 507866), (100, 253933), (197, 128900), (394, 64450), (788, 32225), (985, 25780), (1289, 19700), (1970, 12890), (2578, 9850), (3940, 6445), (4925, 5156)]