28911475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1153}}^1$

素因数の和:1239

約数の個数: 24

約数和(自身を含む): 38635920

約数和(自身を除く): 9724445

約数列:

[1, 5, 17, 25, 59, 85, 295, 425, 1003, 1153, 1475, 5015, 5765, 19601, 25075, 28825, 68027, 98005, 340135, 490025, 1156459, 1700675, 5782295, 28911475]

約数ペア:

[(1, 28911475), (5, 5782295), (17, 1700675), (25, 1156459), (59, 490025), (85, 340135), (295, 98005), (425, 68027), (1003, 28825), (1153, 25075), (1475, 19601), (5015, 5765)]