19710125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:270

約数の個数: 32

約数和(自身を含む): 26632320

約数和(自身を除く): 6922195

約数列:

[1, 5, 19, 25, 43, 95, 125, 193, 215, 475, 817, 965, 1075, 2375, 3667, 4085, 4825, 5375, 8299, 18335, 20425, 24125, 41495, 91675, 102125, 157681, 207475, 458375, 788405, 1037375, 3942025, 19710125]

約数ペア:

[(1, 19710125), (5, 3942025), (19, 1037375), (25, 788405), (43, 458375), (95, 207475), (125, 157681), (193, 102125), (215, 91675), (475, 41495), (817, 24125), (965, 20425), (1075, 18335), (2375, 8299), (3667, 5375), (4085, 4825)]