51981625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:586

約数の個数: 32

約数和(自身を含む): 70012800

約数和(自身を除く): 18031175

約数列:

[1, 5, 19, 25, 43, 95, 125, 215, 475, 509, 817, 1075, 2375, 2545, 4085, 5375, 9671, 12725, 20425, 21887, 48355, 63625, 102125, 109435, 241775, 415853, 547175, 1208875, 2079265, 2735875, 10396325, 51981625]

約数ペア:

[(1, 51981625), (5, 10396325), (19, 2735875), (25, 2079265), (43, 1208875), (95, 547175), (125, 415853), (215, 241775), (475, 109435), (509, 102125), (817, 63625), (1075, 48355), (2375, 21887), (2545, 20425), (4085, 12725), (5375, 9671)]