28958375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:260

約数の個数: 32

約数和(自身を含む): 38750400

約数和(自身を除く): 9792025

約数列:

[1, 5, 19, 25, 89, 95, 125, 137, 445, 475, 685, 1691, 2225, 2375, 2603, 3425, 8455, 11125, 12193, 13015, 17125, 42275, 60965, 65075, 211375, 231667, 304825, 325375, 1158335, 1524125, 5791675, 28958375]

約数ペア:

[(1, 28958375), (5, 5791675), (19, 1524125), (25, 1158335), (89, 325375), (95, 304825), (125, 231667), (137, 211375), (445, 65075), (475, 60965), (685, 42275), (1691, 17125), (2225, 13015), (2375, 12193), (2603, 11125), (3425, 8455)]