128528225

素因数分解:

$5^2\times 7^2\times {\mathrm{239}}^1\times {\mathrm{439}}^1$

素因数の和:702

約数の個数: 36

約数和(自身を含む): 186595200

約数和(自身を除く): 58066975

約数列:

[1, 5, 7, 25, 35, 49, 175, 239, 245, 439, 1195, 1225, 1673, 2195, 3073, 5975, 8365, 10975, 11711, 15365, 21511, 41825, 58555, 76825, 104921, 107555, 292775, 524605, 537775, 734447, 2623025, 3672235, 5141129, 18361175, 25705645, 128528225]

約数ペア:

[(1, 128528225), (5, 25705645), (7, 18361175), (25, 5141129), (35, 3672235), (49, 2623025), (175, 734447), (239, 537775), (245, 524605), (439, 292775), (1195, 107555), (1225, 104921), (1673, 76825), (2195, 58555), (3073, 41825), (5975, 21511), (8365, 15365), (10975, 11711)]